1.
The table shows values for functions f(x) and g(x) .
| x | f(x) | g(x) |
|---|---|---|
| 1 | 1 | 3 |
| 3 | −9 | −9 |
| 5 | 0 | −2 |
| 7 | 2 | 2 |
| 9 | 12 | 9 |
| 11 | 11 | 1 |
What are the known solutions to f(x)=g(x) ?
Select each correct answer.
1
3
7
9
11
2.
Use the graph that shows the solution to f(x)=g(x) .
f(x)=2x√3−4
g(x)=2x2−4
What is the solution to f(x)=g(x) ?
Select each correct answer.
x=−1
x= 0
x = 1
x = 2
Graphs:
+36916 1) Where the values in the vertical columns of f(x) and g(x) are equal is the values of x that make them so
Look where x=3 they are both -9 so x = 3 is an answer
and look at where x = 7 they are both 2 so x = 7 is an answer
2) the graph of g(x) is a parabola open UPWARD (like a bowl) ....becaues the x^2 has a positive co-efficient (+2)
so the second graph is the one to look at.....
THEN, notice where the lines of the graphs cross....those are where the functions are equal valued.....then
note the 'x' values of those points....there are two.... at x = 0 and x= 1
(the actual POINTS are 0, -4 and 1, - 2 )
Cool ? 
