Finding x and y-intercepts

Front

What is the x-intercept of a function?

Back

The x-intercept is the point where the graph of a function crosses the x-axis, which occurs when y = 0.

Front

How do you find the x-intercept from an equation?

Back

To find the x-intercept, set y = 0 in the equation and solve for x.

Front

What is the y-intercept of a function?

Back

The y-intercept is the point where the graph of a function crosses the y-axis, which occurs when x = 0.

Front

How do you find the y-intercept from an equation?

Back

To find the y-intercept, set x = 0 in the equation and solve for y.

Front

From the equation y = 3x + 18, what is the value of the x-intercept?

Back

-6

Front

True or false: The x-intercept of a function ALWAYS occurs where y is equal to zero.

Back

True

Front

What is the x-intercept of the line represented by the equation 2x + 4y = 8?

Back

(4, 0)