Homework Sourse1 y 4x 3 If it does not define a function find a value of x
1. y = 4x 3 If it does not define a function, find a value of x that corresponds to more than one value of y. (If a function was defined, enter NONE.)
x=
2. Find g(8) and g(9).
g(x) = (x 9)2
g(8)
g(9)
3. Find
h(3).
(If an answer is undefined, enter UNDEFINED.)
h(x) = 3/x-4
h(-3)=
| g(8) | = | |
| g(9) | = |
Solution
(1) Let us draw the graph of y=4x-3.
If we draw a vertical line through any point on the line, then the line does not pass through any other point on the line. So by vertical line test, y=4x - 3 is a function.
