Answer: C) y = -3.5x+10
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Explanation:
The y intercept is 10 which means (0,10) is another point on this line.
Use the slope formula for the two points (0,10) and (5,-7.5)
m = (y2-y1)/(x2-x1)
m = (-7.5-10)/(5-0)
m = (-17.5)/(5)
m = -3.5
We have m = -3.5 as the slope and b = 10 as the y intercept.
We go from y = mx+b to y = -3.5x+10 which is why the answer is choice C.
