SOLUTION: Write the equation in slope-intercept form for the line that has a slope of -4 and passes through (1,2).

Algebra ->  Graphs -> SOLUTION: Write the equation in slope-intercept form for the line that has a slope of -4 and passes through (1,2).      Log On


   

Question 1104535: Write the equation in slope-intercept form for the line that has a slope of -4 and passes through (1,2).
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
This type of question is too frequent. Look for other examples already solved.

Equation for slope with unknown (x,y) and known (p,v):
m=%28y-v%29%2F%28x-p%29

Multiply both sides by x-p:
m%28x-p%29=y-v
highlight_green%28y-v=m%28x-p%29%29, format for the point-slope equation.

y=mx-mp%2Bv
highlight_green%28y=mx%2Bv-mp%29, corresponds to the slope-intercept form and m is slope, and vertical axis intercept is v-mp.