What is the vertex of each of these parabolas yx724 y3x724So

What is the vertex of each of these parabolas?

y=(x-7)^2+4

y=3(x+7)^2-4

Solution

Standard form of parabola is y = a(x-h)² + k

here, (h,k) is vertex.

1) Given parabola is y=(x-7)^2+4

Vertex (h,k) = (7,4)

2) Given parabola is y=3(x+7)^2-4

y=3(x-(-7))^2+(-4)

Vertex (h,k) = (-7, -4)