Question

Solve for b to find how far Jasmine was from home when she started hiking.
?
2
12
5
18
8
y = mx + b
24
y = 2x + b
12 = 2(2) + b
X
12 = 4 + b
= b

Answer 1

Use y = mx + b with m = 2 and the point (x,y) = (2,12).

12 = 2(2) + b
12 = 4 + b
b = 12 − 4 = 8

So Jasmine was 8 (units, e.g. miles) from home when she started.