Question

Identify the vertex and the y-intercept of the graph of the function y = 2(x + 1)2 + 4.
Answer
a. vertex: (1, 4)
y-intercept: -6
b. vertex: (-1, -4)
y-intercept: 4
c. vertex: (1, -4)
y-intercept: -2
d. vertex: (-1, 4)
y-intercept: 6

Answer 1

y = a(x-Vx)^2 + Vy

Answer 2

yint is the value at x=0

Answer 3

i got B.

Answer 4

b is wrong

Answer 5

for simplicity: 2(1)^1 + 4 = 6

Answer 6

For quadratic functions in the form \[y=a(x-h)^{2}+k\], the vertex is at (h,k).

Answer 7

So A

Answer 8

yint = 6; therefore theres only one option that fits

Answer 9

Gotcha