Answer:
7 is B
8 is C
9 is D
Explanation:
Hey There!
So as you can see in the first image the slope of a line that passes through the coordinates (-3,1) and (5,-7) is -1
As you can see in the second image the equation of the line that passes through the points (-2,5) and (3,15) is y=2x+9
The last one is D because the equation is a=2b-3
The statement that says a is equal to 3 LESS then TWICE B is correct cause its saying that 2b - 3 is equal to a