SOLUTION: A line passes through the points (-10,-4) and (-1,2). What is the y-intercept of the line?

Algebra ->  Test -> SOLUTION: A line passes through the points (-10,-4) and (-1,2). What is the y-intercept of the line?      Log On


   

Question 784606: A line passes through the points (-10,-4) and (-1,2). What is the y-intercept of the line?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
One way to solve that is rearrange y=mx+b into b=y-mx, and then caclulate the slope between the points and substitute one of the points into this formula for b. In fact, to show this all in one step (and then leave the remaining compuation to you, or here, undone):

Choosing the point (-1,2)...
b=2-%28%282-%28-4%29%29%2F%28-1-%28-10%29%29%29%28-1%29