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Sagot :
Answer:
- y = -3/5 × -5 - 2
- y = 2 × -1 + 2
Step-by-step explanation:
#1
- y = mx + b
- m = -3/5, x = -5, b = -2, y = y
- put in correct order
#2
- (2, -1) - (5,5) = 6/3 = 2/1 = 2 (remember, y is over x. The formula is y2 - y1 / x2 - x1)
- Pick either point given (2, -1) or (5, 5)
- Plug the point in
- y = y, m = 2, x = 2, b = -1
- Put in order
#1
Equation in point slope form
- y-y_1=m(x-x_1)
- y+2=-3/5(x+5)
- y=-3/5x-3-2
- y=-3/5x-5
That's also slope intercept form
#2
Slope
- m=(5+1)/5-2)
- m=6/3
- m=2
Equation in point slope
- y+1=2(x-2)
- y+1=2x-4
- y=2x-5
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