INT HW Finding x and y-intercepts

Front

What are the x- and y-intercepts on a graph?

Back

The x-intercept is the point where the graph crosses the x-axis (y=0), and the y-intercept is the point where the graph crosses the y-axis (x=0).

Front

Which ordered pair represents a y-intercept?

Back

(0, y) where x=0.

Front

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

Back

Set y=0 in the equation and solve for x.

Front

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

Back

Set x=0 in the equation and solve for y.

Front

What is the x-intercept of the equation 3x + 8y = 24?

Back

(8, 0) because setting y=0 gives 3x=24, so x=8.

Front

What is the y-intercept of the equation 3x + 8y = 24?

Back

(0, 3) because setting x=0 gives 8y=24, so y=3.

Front

What is the y-intercept of the equation 4x + 2y = -12?

Back

(0, -6) because setting x=0 gives 2y=-12, so y=-6.

Front

What does the point (0, 4) represent on a graph?

Back

It represents the y-intercept where the graph crosses the y-axis.

Front

What does the point (8, 0) represent on a graph?

Back

It represents the x-intercept where the graph crosses the x-axis.

Front

If a graph has no y-intercept, what does that mean?

Back

It means the graph does not cross the y-axis, which can occur in vertical lines.