Question

1.
Identify the vertex and the y-intercept of the graph of the function.

y = 0.5(x – 3)^2

A. vertex, (3, 0); y-intercept 4.5

B. vertex, (–3, 0); y-intercept, 4.5

C. vertex, (–3, 0); y-intercept, 1.5

D. vertex, (3, 0); y-intercept, 1.5

Answer 1

Answer:

A. vertex, (3, 0); y-intercept 4.5

Step-by-step explanation:

Rewrite in vertex form and use this form to find the vertex  

( h , k ) . ( 3 , 0 )

To find the x-intercept, substitute in  0  for  y  and solve for  x . To find the y-intercept, substitute in  0  for  x  and solve for  y .

x-intercept(s):  

( 3 , 0 )

y-intercept(s):  

( 0 , 4.5 )