Question

f(x)=-x^2+4x+9

Answer 1

wht u wanna find

Answer 2

find the maximun y -value of the graph f(x)=-x^2+4x+9 the maximun value y is y=

Answer 3

graph the function.
max. at x = 2
therefore y = -(2)^2 + 4(2) + 9 = 13

Answer 4

got it?

Answer 5

no

Answer 6

wht u didnt get...graph and u will find maximum value is x=2
now replace x=2 2 for -x^2 + 4x + 9 , you will get 13....
thtas the maximum y value u wanna find

Answer 7

ok thank you