Answer:
20
Step-by-step explanation:
ƒ(x) = 3x^2 – 7
Let x=3
Evaluate the function
f(3) = 3 * (3)^2 -7
= 3*9 -7
= 27-7
= 20
Step-by-step explanation:
Given
function f(x)=3x^2-7
Now put x=3
f(3)=3(3)^2 -7
=3(9)-7
=27-7
f(3)=20
therefore the value of f(x) at x=3 is 20
