SOLUTION: What is the slope and y-intercept of the points (-4,5) and (6,25)?

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Question 758147: What is the slope and y-intercept of the points (-4,5) and (6,25)?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
using gradient formula to find 'm'
y2-y1/x2-x1
25 - 5/6 -(-4)
= 20/10
m = 2
using formula y - b = m(x - a) and Coords (6,25)
y - 25 = 2(x - 6)
y - 25 = 2x - 12
y = 2x - 12 + 25
y = 2x + 13
Hope this helps.
:-)