SOLUTION: Find the equation for the line that passes through (−1, −2) and (4, 3). Is the point (3, 1) on this line? Be sure to justify your answer.

Algebra.Com
Question 908035: Find the equation for the line that passes through (−1, −2) and (4, 3). Is the point (3, 1) on this line? Be sure to justify your answer.
Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!
the equation for the line that passes through (−1, −2) and (4, 3):
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) = (-1, -2) and (x2, y2) = (4, 3).
Slope a is .
Intercept is found from equation , or . From that,
intercept b is , or .

y=(1)x + (-1)

Your graph:





Is the point (, ) on this line?

go to or and plug in and ; if left side of equation is equal to right side, than the point (, ) is on this line

...since the point (, ) is NOT on this line



RELATED QUESTIONS

Find the equation for the line that passes through the point (−3, −1)and that (answered by stanbon)
Find an equation of the line that passes through the point (−2, 2) and is... (answered by Boreal,greenestamps)
Find an equation of the line that passes through the point (2, 3) and is perpendicular to (answered by mananth)
Find an equation of the line that passes through the point (−2, 2) and is... (answered by josgarithmetic)
Find an equation of the line that passes through the point (3, 5) and is perpendicular to (answered by stanbon)
Find the equation for the line that passes through the point (−5, 5), and that is... (answered by Cromlix)
I need help on this questions! Find an equation of the line that passes through the... (answered by Edwin McCravy)
Find the equation for the line that passes through the point (2,2) and that is... (answered by ewatrrr)