a) what is the value of the y-coordinate for any x-intercept? explain.

b) find the x intercept for the following line: y = 3x - 6

b) find the x intercept for the following line: y = 3x - 6

a.) When the line crosses the x-axis, the value of y or the y-coordinate is 0. Likewise, when the line crosses the y-axis, the value of x or the x-coordinate is 0

b.) y = 3x - 6

Since the value of y at the x-intercept is 0, to find the x-intercept, put 0 in for y:

0 = 3x - 6 {substituted 0 in for y}

3x = 6 {added 6 to both sides}

x = 2 {divided both sides by 3}

**x-intercept is 2**......the coordinates are (2,0)

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