Question

If f(x) = x square - 4x + 6, find f(1) - f(-1)

Answer 1

Answer:

- 8

Step-by-step explanation:

Evaluate f(1) and f(- 1) by substituting x = 1 and x = - 1 into f(x)

Given

f(x) = x² - 4x + 6, then

f(1) = 1² - 4(1) + 6 = 1 - 4 + 6 = 3

f(- 1) = (- 1)² - 4(- 1) + 6 = 1 + 4 + 6 = 11

Thus

f(1) - f(- 1) = 3 - 11 = - 8

Answer 2

Answer:

$The~ value ~of~ f(1) - f(-1)~ is~ -8.$

Step-by-step explanation:

$The~given~function:$

$f(x)=x^2-4x+6$

$We~ need~ to~ find~ the~ value ~of ~f(1) - f(-1).$

$Substitute~ x=1~ in~ the~ given~ function.$

$f(1)=(1)^2-4(1)+6=3$

$Substitute~ x=-1~ in~ the~ given ~function .$

$f(-1)=(-1)^2-4(-1)+6=11$

$The~ of ~f(1) - f(-1)~ is$

$f(1)-f(-1)=3-11=-8$

Therefore, the value of f(1) - f(-1) is -8.