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