Chapter 2

Graph the numbers on a number line. \(10,9,3\)

Find the difference. $$ -8-(-5) $$

Find the domain of the function. \begin{equation} \frac{x+1}{x+2} \end{equation}

Identify the like terms in the expression. $$ 5 s^{2}-10 s^{2} $$

Tell whether the set is closed under the operation by deciding if the combination of any two numbers in the set of numbers is itself in the set. odd integers under addition

Determine whether the statement is true or false. If it is false, give a counterexample. The absolute value of a number is always positive or zero.

ADDING REAL NUMBERS Match the exercise with its answer. A. \(-2\) B. 0 C. \(-3\) $$ 3+(-5) $$

Graph the numbers on a number line. \(5,2,8\)

Find the difference. $$ -2-9 $$

In Exercises 17 and 18, find and correct the error. \begin{equation} -9 \div \frac{1}{3}=-9 \cdot \frac{1}{3} \end{equation}

Identify the like terms in the expression. $$ m+8+6 m $$

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

Find the product. \(-7(4)\)

ADDING REAL NUMBERS Match the exercise with its answer. A. \(-2\) B. 0 C. \(-3\) $$ -2+2 $$

Find the opposite of the number. $$ 8 $$

Graph the numbers on a number line. \(-7,-4,-8\)

Find the difference. $$ -10-5 $$

Identify the like terms in the expression. $$ 2 p+1+2 p+5 $$

Use the distributive property to rewrite the expression without parentheses. $$ 5(w+6) $$

Find the product. \(5(-5)\)

NUMBER LINES Use a number line to find the sum. $$ -6+2 $$

Find the opposite of the number. $$ -3 $$

Graph the numbers on a number line. \(-1,-6,-7\)

Find the difference. $$ 25-(-14) $$

Find the quotient. \begin{equation} 9 \div(-3) \end{equation}

Identify the like terms in the expression. $$ -6 w-12-3 w+2 w^{2} $$

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

Find the product. \(-6.3(2)\)

NUMBER LINES Use a number line to find the sum. $$ 2+(-8) $$

Find the opposite of the number. $$ -10 $$

Graph the numbers on a number line. \(-2,-4,-6\)

Find the difference. $$ -10-(-42) $$

Find the quotient. \begin{equation} -10 \div(-5) \end{equation}

Identify the like terms in the expression. $$ 3 x^{2}+4 x+8 x-7 x^{2} $$

Use the distributive property to rewrite the expression without parentheses. $$ (y+4) 5 $$

Find the product. \(-7(-1.2)\)

NUMBER LINES Use a number line to find the sum. $$ -3+(-3) $$

Find the opposite of the number. $$ 0 $$

Graph the numbers on a number line. \(1,-2,3\)

Find the difference. $$ 95-59 $$

Find the quotient. \begin{equation} -4 \div 4 \end{equation}

Simplify the expression by combining like terms if possible. If not possible, write already simplified. $$ -12 m+5 m $$

Use the distributive property to rewrite the expression without parentheses. $$ (2+u) 6 $$

Find the product. \(-\frac{1}{2}\left(\frac{8}{3}\right)\)

NUMBER LINES Use a number line to find the sum. $$ -4+(-7) $$

Find the opposite of the number. $$ -3.8 $$

Graph the numbers on a number line. \(-3,1,5\)

Find the difference. $$ -3-1.7 $$

Find the quotient. \begin{equation} 8 \div(-2) \end{equation}

Simplify the expression by combining like terms if possible. If not possible, write already simplified. $$ 4 y-3 y $$