Question

The slope of the function
y=20x
indicates that:
a: when x decreases by 100units, y decreases by 2000units
b: when x increase by 100 units, y increases by 200 units
c: when x decreases by 1 units, y increases by 20 units
d: when x increase by 1 units, y increase by 1/20 units

Answer 1

is the answer is c

Answer 2

If you think slope as rise (y) over run (x), you can think of it as 20 units up and 1 unit to the right, since it is positive, so the answer is not c. However, to keep the slope positive, both have to increase or both have to decrease.

Answer 3

answer is d?

Answer 4

No, that would say when x increases by 20 units, y increases by 1, this would be a slope of (1/20)x.

Answer 5

a: when x decreases by 100 units, y decreases by 2000 units
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2000 / 100 = 20 which is the slope of the line