Answer:
Step-by-step explanation:
It is D, I did this quiz once
Answer: y=2x-5. so it's 2
remember the following equation: y=mx+b.
the slope is always m, the y intercept is b.
The fourth vertex would be at point (-9,1).
The slope from (5,-4) to (3,4) is -8/2 or -4.
So I did that with (-7,-7) to the fourth vertex to get the answer.
The awnser to this problem is either 12 or 7 by using multiplication or addition
Let "x" be a substitute for "a number"
1/3(x)=x-12 Multiply by 3
x=3x-36 Get n onto the same side of the equation
2x=36 Divide by 2
x=18
That's your answer.