Question

How do you write an equation of a line with slope 1/2 and y-intercept -3?

Answer 1

See a solution process below:

Explanation:

The slope-intercept form of a linear equation is: `y = color(red)(m)x + color(blue)(b)`

Where `color(red)(m)` is the slope and `color(blue)(b)` is the y-intercept value.

Substituting the slope and `y`-intercept given in the problem allows us to write the equation as:

`y = color(red)(1/2)x + color(blue)(-3)`

`y = color(red)(1/2)x - color(blue)(3)`