Question 392341: find an equation of the line containing the given pair of points. Express your answer in the form x =a,y=b or y=mx+b (-1,_1) and (9,9) what is an equation of the line?
Found 2 solutions by NancyLam, MathLover1:
Answer by NancyLam(35)   (Show Source):
You can put this solution on YOUR website! y=mx+b (-1,_1) and (9,9) ( I not sure you write (-1,_1), y=-1 or 1) look like y=-1) I will use y=-1
m= 9-(-1)/9-(-1)=10/10 =1
y-9= 1(x-(1))
y=x-1+9
y= x+8
Answer by MathLover1(20849)  (Show Source):
You can put this solution on YOUR website!
| Solved by pluggable solver: FIND EQUATION of straight line given 2 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, -1) and (x2, y2) = (9, 9).
Slope a is  .
Intercept is found from equation  , or  . From that,
intercept b is  , or  .
y=(1)x + (0)
Your graph:
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