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emmarobert
In the equation y=mx+b, the b value represents the y intercept. However, y must be completely isolated. You must divide all numbers by 15. The y intercept is equal to -750/15 which equals -50
apologiabiology
yint is where the line crosses the y axis or where x=0
15y=7.5(0)-750
15y=-750
divide both sides by 15
y=-50
yint is at y=-50 or (0,-50)

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