Question

Write the equation of the line in either point-slope form or slope-intercept form.

Write the equation of a line that has a slope of -3 and passes through the point (1.25, -4).

Use the drop-down menus to select the appropriate values in the equation.

Answer 1

a/b

Explanation:

got right on edge

Answer 2

`y = -3x + 0.25`

Explanation:

A line has the following slope-intercept equation:

`y = ax + b`

In which a is the slope.

Write the equation of a line that has a slope of -3 and passes through the point (1.25, -4).

Slope of -3 means that
`a = -3`. So

`y = -3x + b`

Passes through the point (1.25, -4). Means that when
`x = 1.25, y = -4`

`-4 = -3*1.25 + b`

`b = -3*1.25 + 4`

`b = 0.25`

So

`y = -3x + 0.25`