Perhaps you’ve written the answers out incorrectly. Answers A and B are the same.
The correct answer is:
y = -7x - 51
Answer:
136
Step-by-step explanation:
180 - <BAC
Answer:
X=3
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
ANSWER
Vertex form;

Vertex

EXPLANATION
Given:

We complete the square as follows:


The vertex form is:

The vertex is

We want to get out x's together on the right side of the inequality.
So, subtract <em>x </em>from both sides to get 9 < 3x.
Now divide both sides by 3 and we get 3 < x.
I personally like to have my variables on the left so we can move the 3 to the left and the <em>x</em> to the right but if we do that, we have to switch the inequality sign.
So we can rewrite this as x > 3.