# SOLUTION: What has a slope of 4 and contains the point (-3,-8)??? How would I do the work to get this answer?

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 Question 535473: What has a slope of 4 and contains the point (-3,-8)??? How would I do the work to get this answer?Found 2 solutions by oberobic, lmeeks54:Answer by oberobic(2304)   (Show Source): You can put this solution on YOUR website!The slope = 4. . So we can start to define the equation in slope-intercept form. . y = mx + b . m = 4 . y = 4x + b . Then use the known point (-3,-8) to find 'b'. . -8 = 4*(-3) + b . -8 = -12 + b . b = 4 . y = 4x + 4 . y-intercept = (0,4) . x-intercept = (-1,0) . Answer by lmeeks54(105)   (Show Source): You can put this solution on YOUR website!The basic equation for a linear expression is: ... y = mx + b ... where m = slope and b = y intercept. ... Givens: slope = 4, which means m = 4 line passes through point (-3, -8) ... These coordinates are in the form, (x, y); therefore, we know the equation will include the answer y = -8 and x = -3 ... Let's put it into the basic equation and see what we have: ... -8 = 4(-3) + b -8 = -12 + b ... Add 12 to both sides: -8 + 12 = -12 + 12 + b 4 = b ... So now we know both m and b to state the equation for the line with slope 4 that passes through the given point: (-3, -8): ... y = 4x + 4 ... cheers, Lee