Out of the three options the first one is the right answer with the given numbers <span />
For this case we have the following linear function:

What we must do is equal the function to zero or equivalently, substitute the value of y = 0 in the given function.
We have then:

From here, we clear the value of x.
We have then:
Answer:
all real zeros of the function y = 2x-4 are:
x = 2
G(-1) = 1 / -1 = -1
f(g(-1)) = (-1)^2 + 9(-1) = 1 - 9 = -8 Answer
f(1/2) = (1/2)^2 + 9(1/2) = 1/4 + 4 1/2 = 19/4
g((f(1//2)) = 1 / 19/4 = 4/19 Answer
Answer:
3. 0
4. n = -2
Step-by-step explanation:
I haven't taken pre-calc but this looks a lot like algebra.
For #3, just plug in -2 for the x values, so:
x^2 + 4x +4
(-2)^2 + 4(-2) + 4
= 4 - 8 + 4
= 0
For #4, move the variables to one side and solve( im not sure what the pi is for tho, or is that a n?):
5n + 6 = -3n - 10
add 3n to both sides
8n + 6 = -10
subtract 6 from both sides
8n = -16
divide both sides by 8
n = -2