The group of answers that satisfy an equation? solutions
A single number or variable, or numbers and variables multiplied together? monomial
Produces a graph that is a straight line? linear equation
Something that relates inputs to outputs? function
A way to name a function identifying its input? domain <em>(not sure if correct)</em>
Answer:
18. x=31
19.x=15
20. a. x=5 WXY= 28
b. YXZ=28
c. WXZ=56
If the vertex was at (-9,-5), then the range will only be ≤-5 or ≥-5.
The range could either be [-5,∞) or (-∞,-5].
The answer is $1,400
Good Luck!