Chapter 2

Evaluate the function when \(x=-2,-1,0\) and \(1 .\) Organize your results in a table. $$ y=x-8 $$

Evaluate the expression for the given value(s) of the variable(s). \(\frac{2-4 x}{y}\) when \(x=2\) and \(y=\frac{1}{2}\)

Use the distributive property to rewrite the expression without parentheses. $$ -2(x-6) $$

Find the sum. $$7+(-2)+(-9)$$

Evaluate the expression for the given value of the variable. \(3(-4)(n)\) when \(n=-2\)

Graph the numbers on a number line. \(\frac{1}{3}, \frac{3}{2}, \frac{11}{4}\)

Evaluate the function when \(x=-2,-1,0\) and \(1 .\) Organize your results in a table. $$ y=12-x $$

Simplify the expression. $$ \frac{18 x-9}{3} $$

Use the distributive property to rewrite the expression without parentheses. $$ -(1+s) $$

Find the sum. $$8+(-4)+(-4)$$

Evaluate the expression for the given value of the variable. \(-3(-a)(-a)\) when \(a=-7\)

Determine whether to use a positive or a negative number to represent the velocity. The velocity of a descending hot-air balloon

Graph the numbers on a number line. \(\frac{9}{10},-\frac{2}{5},-\frac{8}{3}\)

Evaluate the function when \(x=-2,-1,0\) and \(1 .\) Organize your results in a table. $$ y=-x-(-5) $$

Simplify the expression. $$ \frac{22 r+10}{-2} $$

Use the distributive property to rewrite the expression without parentheses. $$ (2+t)(-2) $$

Find the sum. $$-24.5+6+8$$

Evaluate the expression for the given value of the variable. \(9(-2)(-r)^{3}\) when \(r=2\)

Determine whether to use a positive or a negative number to represent the velocity. The velocity of a rising rocket

Write the numbers in increasing order. \(4.6,0.7,-4,-1.8,3,-0.6\)

Evaluate the function when \(x=-2,-1,0\) and \(1 .\) Organize your results in a table. $$ y=-8.5-x $$

Simplify the expression. $$ \frac{-56+h}{-8} $$

A train with 150 freight cars is fully loaded with two types of grain. Each freight car can haul 90.25 tons of barley or 114 tons of corn. Let n represent the number of freight cars containing corn. Which function correctly represents the total weight W the train can haul? $$\text { A. } W=90.25(150-n)+114 n$$ $$\text { B. } W=90.25 n+114(150-n)$$

Use the distributive property to rewrite the expression without parentheses. $$ (y+9)(-1) $$

Find the sum. $$5.4+2.6+(-3)$$

Evaluate the expression for the given value of the variable. \(-4.1(-5)(h)\) when \(h=2\)

Determine whether to use a positive or a negative number to represent the velocity. The velocity of a kite as it lifts into the air

Write the numbers in increasing order. \(-0.3,0.2,0,2.0,-0.2,-3.0\)

Evaluate the function when \(x=-2,-1,0\) and \(1 .\) Organize your results in a table. $$ y=-x-12.1 $$

Simplify the expression. $$ \frac{45-5 n}{5} $$

A train with 150 freight cars is fully loaded with two types of grain. Each freight car can haul 90.25 tons of barley or 114 tons of corn. Let n represent the number of freight cars containing corn. Simplify the correct function.

Use the distributive property to rewrite the expression without parentheses. $$(x-4)(-3)$$

Find the sum. $$2.2+(-2.2)+(2.2)$$

Evaluate the expression for the given value of the variable. \(-2\left(\frac{11}{2}\right)(t)\) when \(t=-3\)

Determine whether to use a positive or a negative number to represent the velocity. The velocity of a falling meteorite

Write the numbers in increasing order. \(6.3,-6.8,-6.1,6.1,-6.2,6.7\)

Evaluate the function when \(x=-2,-1,0\) and \(1 .\) Organize your results in a table. $$ y=x-\frac{1}{2} $$

Simplify the expression. $$ \frac{-44-8 t}{-4} $$

A train with 150 freight cars is fully loaded with two types of grain. Each freight car can haul 90.25 tons of barley or 114 tons of corn. Let n represent the number of freight cars containing corn. If 90 freight cars contain corn, what is the total weight the train is hauling?

Use the distributive property to rewrite the expression without parentheses. $$ -6(4 a+3) $$

Find the sum. $$4+\frac{1}{10}+\left(-\frac{1}{10}\right)$$

Determine whether the statement is true or false. If it is false, give a counterexample. \((-a) \cdot(-b)=(-b) \cdot(-a)\)

Write the numbers in increasing order. \(\frac{9}{2}, 3.4,4.1,-5.2,-5.1,-\frac{10}{4}\)

Find the terms of the expression. $$ -4-y $$

Simplify the expression. $$ \frac{60 y-108}{12} $$

You have 8 moving boxes that you can use to pack for college. Each box can hold 15 pounds of clothing or 60 pounds of books. Let c be the number of boxes that contain clothing. Write a function that gives the total pounds T of the boxes in terms of the number of boxes that contain clothing.

Use the distributive property to rewrite the expression without parentheses. $$ (9 x+1)(-7) $$

Determine whether the statement is true or false. If it is false, give a counterexample. The product \((-a) \cdot(-1)\) is always positive.

Find the sum. $$9+(-4)+\left(-\frac{1}{2}\right)$$

Write the numbers in increasing order. \(7,-\frac{1}{2}, 2,-\frac{3}{4},-5, \frac{1}{6}\)