SOLUTION: Use these points (1, 3) and (2, 8) to answer the problems below. a. Find the slope of the line that passes through the points. b. Graph the line. c. Write the equation of th

Algebra ->  Graphs -> SOLUTION: Use these points (1, 3) and (2, 8) to answer the problems below. a. Find the slope of the line that passes through the points. b. Graph the line. c. Write the equation of th      Log On


   

Question 1013349: Use these points (1, 3) and (2, 8) to answer the problems below.
a. Find the slope of the line that passes through the points.
b. Graph the line.
c. Write the equation of the line in point-slope form.
d. Write the equation of the line in slope-intercept form.
e. Fill in the missing coordinates of the points (x, -3) and (-2, y).
I know how to solve all the problems except e. I just put all the problems here so whoever reads this can see what I've done so far.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Often slope-intercept form is easier to use and work with.
y=mx+b, this form.

What is y, for (-2,y)?
y=m%28-2%29%2Bb
and you can evaluate according to YOUR equation.

What is x, for (x,-3)?
Solve for x in terms of y.
y-b=mx
mx=y-b
x=%28y-b%29%2Fm
and then
x=%28-3-b%29%2Fm


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Note that YOUR equation should be y=5x-2.
and evaluate this according to YOUR equation.