Question

find the x-intercept of the parabola with vertex(3,-2 and y-intercept(0,7).write your answer in this form:(x1,y1),(x2,y2).if necessary, round to the nearest hundredth.

Answer 1

can ya help please!!!!!!!!!!

Answer 2

Well we know that the equation is:
\[y=a(x-3)^2+2\]

Answer 3

And we know the point (0,7) is on the parabola so we can substitute those for x and y and solve for a:
\[7=a(0-3)^2+2\]
Can you solve that for a?

Answer 4

Whoops. I have a sign error. It should be:
\[7=a(x-3)^2-2\]

Answer 5

Solve that for a