Download FunctionsReview81_84

Use this chart to answer questions 1 – 4
x
y
1) What is the domain?
3
-2
5
4
-2
3
6
-1
3) Is this a function?
3
4
For problems 5 – 10 use
2) What is the range?
4) Why or why not?
f(x) = 3x – 5 & g(x) = x2 – 4
5) f(7) =
6) f(-4) =
7) f(3y) =
8) f(2x-5) =
9) f(g( – 3)) =
10) g(f( 4)) =
Find the value of x using f(x) = 3x – 5
11) f(x) = - 26
12) f(x) = – 4
13) For each equation pick five values of the domain, and solve for the range. Then graph the four
points.(for and b pick 0, 2 positives, and 2 negatives)
a) y = 2x – 5
b) y = x2 + 3
14) For this one use the domain of all numbers with x = 1 up to x = 10. Graph it!
y
15) Which of the four points below are solutions to the equation 2x – 3y = 5 ?
a) (4,1)
b) (-2, -3)
c) (5,2)
d) (2.5,0)
16) Give an example of an equation that is not a function. Explain why it isn't a function.
1
x