Use function notation to write the equation of the line.

Given:

Graph of the of a line.

To find:

The equation of the line

Solution:

Take any two points on the line.

Let the points are (0, -2) and (3, 0).

Slope of the line formula:

y-intercept of the line is (0, -2).

c = -2

General equation of a line:

y = mx + c

Substitute the values.

Let y = f(x).

The equation of a line is .

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.