Suppose a parabola has vertex (-4,7) and also passes through the point (-3, 8). Write the equation of the parabola in vertex form.

Can somebody please walk me through how to do this???

Question

Suppose a parabola has vertex (-4,7) and also passes through the point (-3, 8). Write the equation of the parabola in vertex form.

Can somebody please walk me through how to do this???

campbell_st · Answer

well the vertex form is 

$$y = a(x -k)^2 + k$$

and from the information 

h = -4 and k = 7

so substitute them into the standard form,...  


when you have it... then use the given point (-3, 8) to dins the value of a

hope it helps

anonymous · Answer

Wait... What???

campbell_st · Answer

ok... so do you know the vertex form of a parabola...?