Review

a person's age and his/her shoe size

the number of ice cream cones sold and the amount of sunscreen sold

the temperature at a football game and the number of hot drinks sold

the number of people attending a ballgame and the length of the ballgame

a = b

a = 2b

$a\ =\ \frac{b}{2}$

a = 6b

 $x\ \ge\frac{7}{2}$  

 $x\ \le\ \frac{7}{2}$  

 $x\ \ge\ \frac{3}{2}$  

 $x\ \le\ \frac{3}{2}$  

$f\left(x\right)\ =\left|x+2\right|-1$

$f\left(x\right)\ =\ \left|x+1\right|-2$

$f\left(x\right)\ =\ \left|x\ -2\right|+1$

$f\left(x\right)=\left|x\ -1\right|+2$

The zero of f(x) is -6.

The zero of f(x) is 2.

The zeros of f(x) are -1 and 1.

The zeros of f(x) are -6 and 6.

-2x

-2x - 2

-6x - 2

-6x + 8