Question

What is the slope of the line that passes through the pair of points?
(-2,7), (18, 1)

Answer 1

`\displaystyle (-3)/(10)`

Explanation:

Slope formula:

`\displaystyle (y_2-y_1)/(x_2-x_1)`

`\displaystyle(1-7)/(18-(-2))= (-6)/(20)=(-6/2)/(20/2)=(-3)/(10)=-(3)/(10)`

Therefore, the slope is -3/10, and the correct answer is -3/10.

Answer 2

Your slope of the line is -3/10.

Explanation:

Use the following equation:

m (slope) = (y₂ - y₁)/(x₂ - x₁)

Let:

(x₁ , y₁) = (-2 , 7)

(x₂ , y₂) = (18 , 1)

Plug in the corresponding numbers to the corresponding variables:

m = (1 - 7)/(18 - (-2))

Simplify. First solve the parenthesis, then divide:

m = (-6)/(18 + 2)

m = -6/20

Simplify.

m = (-6/20)/(2/2) = -3/10

Your slope of the line is -3/10.

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