Question

H(t) = -(t – 7)^2 + 4

1) What are the zeros of the function?
Write the smaller t first, and the larger t second.
smaller t=
larger t=
2) What is the vertex of the parabola?
(___,___)

Answer 1

1.)The roots (zeros) are the

x

values where the graph intersects the x-axis. To find the roots (zeros), replace

y

with

0

and solve for

x

.

t

=

5

,

9

2.) use this form to find the vertex ( h , k ) (h,k). ( 7 , 4 )

Answer 2

Explanation:

1. set it equal to 0 so t=5,9

2. this is wriiten in vertex notation so vertex is (7,4)