Question

Suppose a parabola has vertex (5, –3) and also passes through the point (6, 1). Write the equation of the parabola in vertex form.

y = (x – 5)2 – 3
y = 4(x – 5)2 – 3
y = 4(x + 5)2 – 3
y = 4(x – 5)2 + 3

Answer 1

Vertex formula:
y = a ( x - 5 )² - 3
1 = a ( 6 - 5 )² - 3
1 = a - 3
a = 4
Answer:
B ) y = 4 ( x - 5 )² - 3