SOLUTION: What is the slope and y-int of (2,20) and (12,70)

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Question 764123: What is the slope and y-int of (2,20) and (12,70)
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: Find the equation of line going through points
hahaWe are trying to find equation of form y=ax+b, where a is slope, and b is intercept, which passes through points (x1, y1) = (2, 20) and (x2, y2) = (12, 70).
Slope a is a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+=+%2870-20%29%2F%2812-2%29+=+5.
Intercept is found from equation a%2Ax%5B1%5D%2Bb+=+y%5B1%5D, or 5%2A2+%2Bb+=+10. From that,
intercept b is b=y%5B1%5D-a%2Ax%5B1%5D, or b=20-5%2A2+=+10.

y=(5)x + (10)

Your graph:





let see other point too, it is not visible on graph above: