SOLUTION: Find the slope of the line containing the given pair of points (-6,7) and (1,2) and graph the line

Algebra ->  Linear-equations -> SOLUTION: Find the slope of the line containing the given pair of points (-6,7) and (1,2) and graph the line       Log On


   

Question 129808:

Find the slope of the line containing the given pair of points (-6,7) and (1,2) and graph the line
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
slope=(y2-y1)/(x2-x1)=(2-7)/(1+6)=-5/7
now replace thw x,y terms by one set of coordinates & solve for the y intercept(b) in the line equation [Y+mX+b].
7=-5/7*-6+b
7=30/7+b
b=7-30/7
b=(49-30)/7
b=19/7 the y intercept.
y=-5x/7+19/7
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-5x%2F7+%2B19%2F7%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -5x/7 +19/7).