Given the function fx3x26x5 fill in the correct value for ea

Given the function f(x)=-3x^2+6x+5, fill in the correct value for each of the parameters. y-intercept: (0, ) vertex: ( , ) f(3)=

f(x)=-3x^2 +6x+5

y intercept

To find the y intercept ,we have to plug x=0

f(0)=-3(0)^2 + 6(0) + 5= 5

therefore y intercept = (0,5)

vertex

the formula of vertex,x =-b/2a

x=-6/2(-3)=1

f(1)=-3(1)^2 +6(1)+5=8

Therefore vertex= (1,8)

f(3)= -3(3)^2 + 6(3)+ 5= -4