Complete the equation of the line whose y-intercept is (0, -1) and slope is 4. Stuck?
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Answer:
Step-by-step explanation:
First, find the slope using the points (3, 2) and (-1, -1):
Slope =
Find the y-intercept, b, by substituting x = -1, y = -1 and m = ¾ in y = mx + b.
-1 = ¾(-1) + b
-1 = -¾ + b
Add ¾ to both sides
-1 + ¾ = b
(-4 + 3)/4 = b
-¼ = b
Substitute m = ¾ and b = -¼ in y = mx + b.
The equation would be:
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