The x-intercept of a line is the point (a,0) where the line intersects the x-axis. x and y Intercepts (a,0)

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Presentation transcript:

The x-intercept of a line is the point (a,0) where the line intersects the x-axis. x and y Intercepts (a,0)

The y-intercept of a line is the point (0,b) where the line intersects the y-axis. (a,0) (0,b)

Consider some points on the x-axis (5,0) (-1,0) (-4,0) Notice that every point has a y-value of zero To find the x-intercepts: 1) set y = 0 2) solve for x 3) write the ordered pair (x,0)

Consider some points on the y-axis (0,4) (0,-3) (0,0) Notice that every point has a x-value of zero To find the y-intercepts: 1) set x = 0 2) solve for y 3) write the ordered pair (0,y)

Example 1:Find the x and y intercepts for the graph of: To find the x-intercepts: 1) set y = 0 2) solve for x 3) write the ordered pair (x,0)

To find the y-intercepts: 1) set x = 0 2) solve for y 3) write the ordered pair (0,y)

Example 2:Find the x and y intercepts for the graph of: To find the x-intercepts: 1) set y = 0 2) solve for x 3) write the ordered pair (x,0)

To find the y-intercepts: 1) set x = 0 2) solve for y 3) write the ordered pair (0,y)