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  3. What is the y-intercept of the line with the equation 2y = 4x + 6?

What is the y-intercept of the line with the equation 2y = 4x + 6?

admin2013-02-19  55
问题 What is the y-intercept of the line with the equation 2y = 4x + 6?
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答案3
解析 First, rearrange the equation into the slope-intercept form by isolating y on the left side; divide both sides by 2:
y = 2x + 3
You know that in the slope intercept formula, y = mx + b, b is the y-intercept. Because b = 3, the correct answer is 3.
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