Question

Mental Math Using the slope formula, find the slope of the line through the points (0,0) and (5,15). Use pencil and paper. Explain how you can use mental math

slope of the line.
The slope of the line is (Type an integer or a simplified fraction.)
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Answer 1

Answer: m=3

Explanation:

The strategy to finding the slope is the use the slope formula, which Is
`m=(y_2-y_1)/(x_2-x_1)`. Since we are given a point, we can directly plug them in and solve.

`m=(15-0)/(5-0) =(15)/(5)=3`

The way we can use mental math is mainly because we are given the origin. We know that anything subtracted by 0 is itself. With the formula, the subtraction gives us 15 and 5. With basic division, we know that 15/5=3.