Question

Which of the following values in the absolute maximum of the function f(x) = 4x-x^2+6 on the interval [0.4]

Answer 1

The answer is 10 but i keep getting 2

Answer 2

is that 0.4? or 0 and 4?

Answer 3

0 and 4

Answer 4

0,4

Answer 5

Try differentiating f(x) and set the derivative equal to 0 to get the point of maxima.

Answer 6

f'(x) = -2x+4

x = -2, i got that

Answer 7

i mean positive 2

Answer 8

Yes, then evaluate the value of the function to get the maximum value in that interval.

Answer 9

OH i had an arithmetic problem! thank you! :)

Answer 10

or...
since this is a parabola, you can just find the vertex...