baohuy1412
baohuy1412
21-03-2019
Mathematics
contestada
i need help plss!!!!!
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sven37
sven37
21-03-2019
First you must use the formula for slope to find the slope.
y2-y1/x2-x1 = 1-(-2)/2-1 = 3
Your equation is:
y = 3x + b
Substitute an x and a y value and solve for the y-intercept.
-2 = 3(1) + b
b = -5
Your final answer: y = 3x - 5
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