What is the y-intercept of the line whose equation is y = x - 3?

Solution:

Given, the equation is y = x - 3

We have to find the y-intercept of the line

Y-intercept is where the line crosses the y-axis or where x = 0

Put x = 0 in the given equation,

y = 0 - 3

y = -3

Therefore, the y-intercept of the line is -3.

Example:  What is the y-intercept of the line whose equation is y = x + 5?

Solution:

Given, the equation is y = x + 5

We have to find the y-intercept of the line

Y-intercept is where the line crosses the y-axis or where x = 0

Put x = 0 in the given equation,

y = 0 + 5

y = 5

Therefore, the y-intercept of the line is 5.

What is the y-intercept of the line whose equation is y = x - 3?

Summary:

The y-intercept of the line whose equation is y = x - 3 is -3.