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Which statement describes a relationship between these equations? equation 1: y = 3x − 7 equation 2: y = -4x − 7

User Baxterma
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2 Answers

2 votes

Answer: same y-intercept

Explanation:

User Rjschnorenberg
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4 votes

Answer:

Lines have different slopes but same y -intercepts, c = -7

Explanation:

The easiest way to see the relationship between the two lines is to transform them both into slope-intercept form, which is

y = mx + c

Equation 1

y = 3x − 7

Equation 2

y = -4x − 7

Lines have different slopes but same y -intercepts, c = -7

If two lines have different slopes, they cannot be the same line. However, if they share a y-intercept, that means they cross the y -axis at the same y value. Since the x value is constant on the y-axis (0), they also share an x-value here.

User Starlin
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6.6k points