Answer:
vertex is 4
Step-by-step explanation:
y = (x-4)^2 + 7
(x-4) (x-4)
x * x = x^2
x * -4 = -4x
-4 * x = -4x
-4 * -4 =16
x^2 - 8x + 16
y = x^2 -8x + 16 + 7
y = x^2 -8x + 23
a b c
formula to find vertex: -b / 2a
= -b / 2a
= - (-8) / 2 (1)
= 8 / 2
= 4
vertex = 4
(what i did was work out the exponent outsite the parentesis then i got the equation i wanted, and from that equation i used the formula to find the vertex and i just plugged the numbers of the equation into the formula and work it out)
Answer:
(4,7)
Step-by-step explanation:
The equation for a parabola can be written as
y = a(x-h)^2 +k where (h,k) is the vertex
given f(x) = (x-4)^2+7
The vertex is (4,7)
