Chapter 5

Algebra 1: Concepts and Skills · 266 exercises

Problem 13

Write in point-slope form the equation of the line that is parallel to the given line and passes through the given point. $$ y=\frac{1}{4} x-6,(3,3) $$

4 step solution

Problem 13

Write in slope-intercept form the equation of the line described below. $$ m=3, b=2 $$

2 step solution

Problem 14

In Exercises \(12-17\), use the following information. Renting a canoe costs 10 dollars plus 28 dollars per day. The linear model for this situation relates the total cost of renting a canoe, \(y,\) with the number of days rented, \(x\). Use the slope and \(y\) -intercept form to write the linear model.

2 step solution

Problem 14

Determine whether the lines are perpendicular. $$ y=\frac{3}{5} x+2, y=-\frac{5}{3} x-2 $$

4 step solution

Problem 14

Write in point-slope form the equation of the line that passes through the given points. $$ (-7,2) \text { and }(0,1) $$

3 step solution

Problem 14

Write in slope-intercept form the equation of the line described below. $$ m=1, b=-1 $$

3 step solution

Problem 15

Determine whether the lines are perpendicular. $$ y=\frac{4}{7} x+2,4 y=-7 x-16 $$

3 step solution

Problem 15

Write in point-slope form the equation of the line that passes through the given points. $$ (-8,6) \text { and }(-13,1) $$

3 step solution

Problem 15

Write the equation in standard form with integer coefficients. \(y=-5 x+2\)

2 step solution

Problem 15

Write in slope-intercept form the equation of the line described below. $$ m=0, b=6 $$

3 step solution

Problem 16

Determine whether the lines are perpendicular. $$ y=-5, x=5 $$

2 step solution

Problem 16

In Exercises \(12-17\), use the following information. Renting a canoe costs 10 dollars plus 28 dollars per day. The linear model for this situation relates the total cost of renting a canoe, \(y,\) with the number of days rented, \(x\). Use the linear model to find the cost of renting a canoe for 3 days.

4 step solution

Problem 16

Write in point-slope form the equation of the line that passes through the given points. $$ (11,-2) \text { and }(17,6) $$

3 step solution

Problem 16

Write the equation in standard form with integer coefficients. \(y=3 x-8\)

3 step solution

Problem 16

Write in slope-intercept form the equation of the line described below. $$ m=10, b=0 $$

3 step solution

Problem 17

In Exercises \(12-17\), use the following information. Renting a canoe costs 10 dollars plus 28 dollars per day. The linear model for this situation relates the total cost of renting a canoe, \(y,\) with the number of days rented, \(x\). If you had 66 dollars to spend, for how many days could you rent a

3 step solution

Problem 17

Write in point-slope form the equation of the line that passes through the given points. $$ (-4,5) \text { and }(4,5) $$

3 step solution

Problem 17

Write the equation in standard form with integer coefficients. \(y=-9+4 x\)

2 step solution

Problem 17

Write in slope-intercept form the equation of the line described below. $$ m=\frac{2}{5}, b=7 $$

2 step solution

Problem 18

From 1994 through 1997 , the cost of owning and operating a car per mile, which includes car maintenance and repair, increased by about 2.2 cents per year. In \(1995,\) it cost about 48.9 cents per mile to own and operate a car. Let \(t=0\) represent the year 1994 Find the slope of the linear equation that models this situation.

3 step solution

Problem 18

Write in slope-intercept form the equation of the line described below. $$ m=-4, b=-\frac{3}{7} $$

3 step solution

Problem 19

In Exercises \(18-23\), use the following information. From 1994 through 1997 , the cost of owning and operating a car per mile, which includes car maintenance and repair, increased by about 2.2 cents per year. In \(1995,\) it cost about 48.9 cents per mile to own and operate a car. Let \(t=0\) represent the year 1994. Name one point on the line.

2 step solution

Problem 19

Write the equation in standard form with integer coefficients. \(y=-\frac{3}{8} x\)

2 step solution

Problem 19

Write in slope-intercept form the equation of the line described below. $$ m=-1, b=-\frac{2}{5} $$

3 step solution

Problem 20

Write in slope-intercept form the equation of the line passing through the two points. Show that the line is perpendicular to the given line. Check your answer by graphing both lines. $$ (8,5),(5,-1) ; y=-\frac{1}{2} x+4 $$

4 step solution

Problem 20

Write in point-slope form the equation of the line that passes through the given point and has the given slope. $$ (-1,-3), m=4 $$

4 step solution

Problem 20

Write the equation in standard form with integer coefficients. \(y=9 x+\frac{1}{2}\)

3 step solution

Problem 21

Write in point-slope form the equation of the line that passes through the given point and has the given slope. $$ (-6,2), m=-5 $$

3 step solution

Problem 21

Write in slope-intercept form the equation of the line passing through the two points. Show that the line is perpendicular to the given line. Check your answer by graphing both lines. $$ (-2,-2),(1,-3) ; y=3 x-1 $$

4 step solution

Problem 21

In Exercises \(18-23\), use the following information. From 1994 through 1997 , the cost of owning and operating a car per mile, which includes car maintenance and repair, increased by about 2.2 cents per year. In \(1995,\) it cost about 48.9 cents per mile to own and operate a car. Let \(t=0\) represent the year 1994. Use an algebraic approach to predict the cost of owning and operating a car in 2003.

6 step solution

Problem 21

Write in standard form an equation of the line that passes through the given point and has the given slope. \((-8,3), m=2\)

5 step solution

Problem 22

Write in point-slope form the equation of the line that passes through the given point and has the given slope. $$ (-10,0), m=2 $$

3 step solution

Problem 22

Write in slope-intercept form the equation of the line passing through the two points. Show that the line is perpendicular to the given line. Check your answer by graphing both lines. $$ (-3,6),(3,0) ; y=x+2 $$

4 step solution

Problem 22

Write in standard form an equation of the line that passes through the given point and has the given slope. \((-2,7), m=-4\)

3 step solution

Problem 23

Write in point-slope form the equation of the line that passes through the given point and has the given slope. $$ (-8,-2), m=2 $$

3 step solution

Problem 23

Write in slope-intercept form the equation of the line passing through the two points. Show that the line is perpendicular to the given line. Check your answer by graphing both lines. $$ (4,-7),(7,5) ; y=-\frac{1}{4} x $$

4 step solution

Problem 23

Write in standard form an equation of the line that passes through the given point and has the given slope. \((-1,4), m=-3\)

3 step solution

Problem 24

Write in point-slope form the equation of the line that passes through the given point and has the given slope. $$ (-4,3), m=-6 $$

3 step solution

Problem 24

Write in slope-intercept form the equation of the line passing through the two points. Show that the line is perpendicular to the given line. Check your answer by graphing both lines. $$ (1,9),(9,9) ; x=1 $$

3 step solution

Problem 24

Write in standard form an equation of the line that passes through the given point and has the given slope. \((-6,-7), m=-1\)

3 step solution

Problem 25

Write in point-slope form the equation of the line that passes through the given point and has the given slope. $$ (-3,4), m=6 $$

4 step solution

Problem 25

Write in slope-intercept form the equation of the line passing through the two points. Show that the line is perpendicular to the given line. Check your answer by graphing both lines. $$ (-6,-4),(0,0) ; y=-\frac{3}{2} x-3 $$

4 step solution

Problem 25

Write in standard form an equation of the line that passes through the given point and has the given slope. \((3,-2), m=5\)

3 step solution

Problem 26

Write in point-slope form the equation of the line. Then rewrite the equation in slope-intercept form. $$ (12,2), m=-7 $$

3 step solution

Problem 26

Write in standard form an equation of the line that passes through the given point and has the given slope. \((10,6), m=0\)

3 step solution

Problem 26

Write in slope-intercept form the equation of the line that passes through the given points. $$ (1,-5) \text { and }(3,4) $$

3 step solution

Problem 27

Write in point-slope form the equation of the line. Then rewrite the equation in slope-intercept form. $$ (8,-1), m=0 $$

2 step solution

Problem 27

Use the following information. A basketball team scored 102 points in a playoff game. Each field goal is 2 points and each free throw is 1 point. The team scored no 3 -point field goals. Write a linear model for the number of points the team scored in terms of field goals \(x\) and free throws \(y .\)

3 step solution

Problem 27

Write in standard form an equation of the line that passes through the given point and has the given slope \((2,9), m=\frac{2}{5}\)

3 step solution

Problem 27

Write in slope-intercept form the equation of the line that passes through the given points. $$ (-1,-2) \text { and }(2,6) $$

3 step solution

Show/ page