Question

I need help what's the answer ​

Answer 1


`y = 2x - 5`

Explanation:

slope-intercept form is
`y = mx + b` with
`m` being the slope of the line and
`b` being the y-intercept (where the line touches the y-axis)

First we can find
`m` using the formula for slope,
`(rise)/(run)` (or
`(y_1 - y_2)/(x_1 - x_2)`), which is the change in y over the change in x.

We can use any points on the line, but I am going to use
`(4, 3)` and
`(3, 1)` for this example. We can now find the slope.

`(3-1)/(4-3) = (2)/(1)`

This means your slope is 2, which means
`m` is 2.

Finding the y-intercept is easy. This line crosses the y-axis at -5, and so
`b` is -5.

Now we can plug in the values into our original equation to get the equation of the line.


`y = 2x - 5`

That is the answer

- Kan Academy Advance