Evaluate the function.

Find f(-x) when f(x) = 3x2 - 5x + 4

A.3x2 + 5x + 4

B.-3x2 + 5x + 4

C.-3x2 + 5x - 4

D.3x2 + 5x - 4

Explanation:

Wherever you see an 'x', replace it with '-x'. Simplify.

f(x) = 3x^2 - 5x + 4

f(-x) = 3(-x)^2 - 5(-x) + 4

f(-x) = 3x^2 + 5x + 4

The only change that happened is the -5x turned into +5x

The 3x^2 term did not change because (-x)^2 = x^2 for all real numbers x.

You can see this through an example like squaring -7 which turns into 49, and so does squaring 7. This means (-7)^2 = 7^2 = 49.

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.

c

step-by-step explanation: