SOLUTION: Find the slope-intercept form of the equation of the passing through the points (-1,2) (2,8). Thanks in advance.

Question 95883: Find the slope-intercept form of the equation of the passing through the points (-1,2) (2,8). Thanks in advance.
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
SLOPE=(Y2-Y1)/(X2-X1)=(8-2)/(2+1)=6/3=2 FOR THE SLOPE.
NOW REPLACE THE X & Y TERMS WITH ONE SET OF (X,Y)POINTS & SOLVE FOR THE Y INTERCEPT (b).
2=2*-1+b
2=-2+b
b=2+2
b=4 THIS IS THE Y NTERCEPT.
THE LINE EQUATION IS:
Y=2X+4
(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = 2x +4).
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