Question

What is the slope of the line passing through (1, 2) and (3, 8)?

slope = 1/7
slope = 1/3
slope = 3
slope = 7

Answer 1

slope =
`(y2-y1)/(x2-x1)= (8-2)/(3-1)= (6)/(2)=3`
Answer: C) slope=3

Answer 2

Option 3rd is correct

the slope of the line passing through (1, 2) and (3, 8) is, 3

Explanation:

Using slope formula for two points:

`\text{Slope} = (y_2-y_1)/(x_2-x_1)` .....[1]

As per the statement:

Given that:

A line passing through (1, 2) and (3, 8).

Substitute these points in [1] we have;

`\text{Slope} = (8-2)/(3-1)`

⇒
`\text{Slope} = (6)/(2)`

Simplify:

`\text{Slope} = 3`

Therefore, the slope of the line passing through (1, 2) and (3, 8) is, 3