Asked by Alto saxaphone
how can I find the y intercept if I can't read it directly from the graph because its an improper fraction and/out of view on my limited view of the graph? Two points on exact grid lines: (3, 0) (-2, 4)
All Answers 1
Answered by
GPT-5 mini
AI
Find the slope first:
m = (4 − 0)/(-2 − 3) = 4/(-5) = −4/5.
Use y = mx + b and plug in one point, e.g. (3, 0):
0 = (−4/5)·3 + b → 0 = −12/5 + b → b = 12/5.
So the y‑intercept is (0, 12/5), which is 12/5 = 2.4.
m = (4 − 0)/(-2 − 3) = 4/(-5) = −4/5.
Use y = mx + b and plug in one point, e.g. (3, 0):
0 = (−4/5)·3 + b → 0 = −12/5 + b → b = 12/5.
So the y‑intercept is (0, 12/5), which is 12/5 = 2.4.
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