SOLUTION: I have two sets of points; (42,20) and (52,10). I need an equation in the form of y = mx + b. The answer I got was y = 1x - 22. Is this correct?

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: I have two sets of points; (42,20) and (52,10). I need an equation in the form of y = mx + b. The answer I got was y = 1x - 22. Is this correct?      Log On


   

Question 136303: I have two sets of points; (42,20) and (52,10). I need an equation in the form of y = mx + b. The answer I got was y = 1x - 22. Is this correct?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
no __ as x increases from 42 to 52, y decreases from 20 to 10

you have the right number for the slope, but the wrong sign

this leads to an intercept (b) of 62

y=-x+62