Evaluate the function rule to find the range of each function for the domain {-3, 0, 5}.
f(x) = x² − 5

A. {-14, .5, 10}
B. {-14, -5, 20}
C. {-5, 4, 20}
D. {4, 5, 10}

Question

Evaluate the function rule to find the range of each function for the domain {-3, 0, 5}. 
f(x) = x² − 5 



 A. {-14, .5, 10} 
 B. {-14, -5, 20} 
 C. {-5, 4, 20} 
 D. {4, 5, 10}

texaschic101 · Answer

domain is all the x values.
so lets start subbing you numbers in for x..
f(x) = x^2 - 5

subbing in -3 for x
f(-3) = -3^2 - 5
f(-3) = 9 - 5
f(-3) = 4

subbing in 0 for x
f(0) = 0^2 - 5
f(0) = -5

subbing in 5 for x
f(5) = 5^2 - 5
f(5) = 25 - 5
f(5) = 20

so your range, the y values, are : -5,4,20

anonymous · Answer

tysm! c: