Question

f(x) = x2 - 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 1

for x=2, substitute in F(x) to find y ---> 2^2-5 =-1 
for x=4 , F(4) = 4^2-5 = 11
for x=7 , F(7) = 7^2-5=44
The range is {-1, 11, 44} 

Answer 2

well the person before me got it correct. the answer is D I've taken the test