SOLUTION: f(x) = x^2 - 5 For the function shown, what is the range of the function when the domain is {2, 4, 7}? A) {-1, 44} B) {-1, -5} C) {6, 21, 54} D) {-1, 11, 44}

Algebra ->  Functions -> SOLUTION: f(x) = x^2 - 5 For the function shown, what is the range of the function when the domain is {2, 4, 7}? A) {-1, 44} B) {-1, -5} C) {6, 21, 54} D) {-1, 11, 44}      Log On


   

Question 1080623:
f(x) = x^2 - 5
For the function shown, what is the range of the function when the domain is {2, 4, 7}?
A) {-1, 44}
B) {-1, -5}
C) {6, 21, 54}
D) {-1, 11, 44}
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29+=+x%5E2+-+5
when the domain is { 2,+4, 7}, the range
f%28x%29+=+x%5E2+-+5 if x=2
f%28x%29+=+2%5E2+-+5
f%28x%29+=+4+-+5

f%28x%29+=+-1
f%28x%29+=+x%5E2+-+5 if x=4
f%28x%29+=+4%5E2+-+5
f%28x%29+=+16+-+5

f%28x%29+=+11

f%28x%29+=+x%5E2+-+5 if x=7
f%28x%29+=+7%5E2+-+5
f%28x%29+=+49+-+5

f%28x%29+=+44
so, answer is:

D) { -1, 11,+44 }