SOLUTION: A line joins the points (-2,4) and (- 1, 1). The coordinates of the point where the line intersects the x-axis are: A. (0,-2); B. (-2,0); C. (-3/2,0); D. (-2/3,0); E. none

Algebra ->  Linear-equations -> SOLUTION: A line joins the points (-2,4) and (- 1, 1). The coordinates of the point where the line intersects the x-axis are: A. (0,-2); B. (-2,0); C. (-3/2,0); D. (-2/3,0); E. none      Log On


   

Question 240651: A line joins the points (-2,4) and (- 1, 1). The coordinates of the point
where the line intersects the x-axis are:
A. (0,-2); B. (-2,0); C. (-3/2,0); D. (-2/3,0); E. none
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(-2,4) and (- 1, 1).
Y=mX+b
M=(Y2-Y1)/(X2-X1)=(1-4)/(-1+2)=-3/1=-3 ANS. FOR THE SLOPE.
4=-3*-2+b
4=6+b
B=4-6
b=-2 ANS. FOR THE Y INTERCEPT.
Y=-3X-2
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-3x+-2%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -3x -2).
ANSWER. D) (-2/3,0)