19.5k views
2 votes
PLEASE HELP I AM REALLY CONFUSED

PLEASE HELP I AM REALLY CONFUSED-example-1
User Max Izrin
by
8.0k points

1 Answer

1 vote

Answer:

Explanation:

y = 3 (x-1)(x+ 7 ) this graph will intercept the x axis when y = 0

0 = 3 ( x-1)(x+7) so you can see this = 0 when x =1 or when x = -7

these are the x-axis intercepts

the vertex will be right in the middle between the intercepts found above ....... at x = -3

plug this value in to find the y coordinate 3 ( -3-1)(-3+7) = -48

vertex is -3, -48

the axis of symmetry is the value of the x coordinate of the vertex

x = - 3

direction of opening will be upward.....

see attached graph

PLEASE HELP I AM REALLY CONFUSED-example-1
User Arunjyothis
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories