Which is an equation in point slope form of the line that passes through the points (-4, -1) and (5,7)
a y+4=9/8(x+1)
b y+1=8/9(x+4)
c y+1=8/7(x+4)
d y-1=8/9(x-4)

B)
First, find the slope.
(7+1)/(5+4)
8/9

Then, plug in a point and the slope.
y-y1=m(x-x1)
Because all of the choices use (-4,-1), we will do the same.
y-(-1)=(8/9)[x-(-4)]
y+1=(8/9)(x+4)
There's your answer.

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.