Question

Plot the y-intercept and the vertex of the following function:
g(x) = - x2 + 6x - 8
What is the smallest zero of the function? Enter a number only.

Answer 1

To find the y-intercept simply plug in 0 for x
-(0)^2+6(0)-8=y=-8
To find the smallest zero factor (-x+4)(x-2)=0 so the smallest zero is x=4

Answer 2

The vertex will be the largest point actually because the parabola is facing downwards because there is a negative infront of x^2

Answer 3

thank again