Question

Question is in comments.

Answer 1

Do you know how o find the slope?

Answer 2

to*

Answer 3

\[\frac{ y _{2}-y_{1} }{ x _{2}-x _{1} }=m\]

Answer 4

\[\frac{ 2.55-1.75 }{ 100-50 }=\frac{ .8}{ 50}=.016\]

Answer 5

So far we have half of hte equation
y=.016x+c

Answer 6

We now have to plug in a value of x and y and solve for c.

Answer 7

Lets plug in the point of (100,2.55)

Answer 8

2.55=.016x100+c
2.55=1.6+c
c=.95

Answer 9

Do you get it so far?

Answer 10

yes

Answer 11

So your final answer would be
y=.016x+.95
which is A.

Answer 12

@doresmith

Answer 13

Thank you. I have one more question.