What is the y-intercept of the line y = 2x - 4?

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Multiple Choice

What is the y-intercept of the line y = 2x - 4?

Explanation:
The y-intercept is where a line crosses the y-axis, which occurs when x is 0. For the line y = 2x - 4, plug in x = 0 to get y = -4, so the intercept is (0, -4). The other points don’t lie on the y-axis or don’t satisfy the equation: (2, 0) is the x-intercept (where y = 0), (0, 0) would require y to be 0 when x is 0, which isn’t true here, and (-4, 0) isn’t on the line.

The y-intercept is where a line crosses the y-axis, which occurs when x is 0. For the line y = 2x - 4, plug in x = 0 to get y = -4, so the intercept is (0, -4). The other points don’t lie on the y-axis or don’t satisfy the equation: (2, 0) is the x-intercept (where y = 0), (0, 0) would require y to be 0 when x is 0, which isn’t true here, and (-4, 0) isn’t on the line.

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