Answer: First option
Step-by-step explanation:
You have the quadratic equation given in the problem:

To find an equivalent expression you cacn factorize. Find two numbers whose sum is -13 and whose product is -30.
These numbers would be -15 and 2.
Therfore, you obtain the following equivalent expression:

If you don't want to apply the method above, you can use the quadratic formula:

Where:

When you susbstitute values you obtain that:

Then you can rewrite the equation as 
Answer:
as below
Step-by-step explanation:
it's negative 4 or -4 is the rate of change or aka the slope
show the teacher the graph, which is free and also online. ( Demos )
:) you can make that graph also is my point
Answer:
Step-by-step explanation:
B
Answer:
x=-16
Step-by-step explanation:
y=-20
y=x-4
-20=x-4
x=-16
The third one
5/6 is the answer