Sagot :
f(x) = -8x²
To find the value of f(-3), put -3 in place of 'x' in the definition of the function.
f(-3) = -8(-3)²
f(-3) = -8(9) = -72
To find the value of f(-3), put -3 in place of 'x' in the definition of the function.
f(-3) = -8(-3)²
f(-3) = -8(9) = -72