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Pete Williamson

Lvl 10
3y ago
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8y ago

The y-intercept is where the x-coordinate is zero. Substitute 0 for x in the equation to find the y-coordinate of the y-intercept:

y = -3x - 9

→ y = -3 × 0 - 9

→ y = -9

→ The y-intercept has the ordered pair (0, -9).

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Q: Which ordered pair represents the y-intercept of the graph of the equation y -3x - 9?
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