since slope=3 the equation is y=3x+b
substitute 4 for y and -2 for x to solve for b
4=3(-2)+b
4=-6 +b
b=10
equation is y=3x+10
Amelia S.
asked 04/05/19Find the slope-intercept form of the line whose slope is 3 and that passes through the point (-2, 4).
since slope=3 the equation is y=3x+b
substitute 4 for y and -2 for x to solve for b
4=3(-2)+b
4=-6 +b
b=10
equation is y=3x+10
Matthew C. answered 04/05/19
Math Tutor
Use the point-slope form of the equation: m(x - x1) = y - y1 and substitute the values as 3(x -(-2)) = y - 4. Rearrange to get y = 3x + 10.
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