SOLUTION: Given A=(3,7),(-1,2): A) Find the slope between the two points. B) Write the equation of the line through the points in general form. C) Sketch the Graph.

Algebra ->  College  -> Linear Algebra -> SOLUTION: Given A=(3,7),(-1,2): A) Find the slope between the two points. B) Write the equation of the line through the points in general form. C) Sketch the Graph.      Log On


   

Question 396112: Given A=(3,7),(-1,2):
A) Find the slope between the two points.
B) Write the equation of the line through the points in general form.
C) Sketch the Graph.
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
A=(3,7),(-1,2)
a) SLOPE=(Y2-Y1)/(X2-X1)
SLOPE=(2-7)/(-1-3)
SLOPE=-5/-4=5/4=1.25 ANS.
B) Y=mX+b
7=1.25*3+b
7=3.75+b
b=7-3.75
b=3.25
Y=1.5X+3.25 ans.
C) +graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+1.5x+%2B3.25%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions 1.5x +3.25).