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If a line crosses the y-axis at (0, -3) and has a slope of 3, what is the equation of the line?
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2 votes
If a line crosses the y-axis at (0, -3) and has a slope of 3, what is the equation of the line?

User Dan Blanchard
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2 Answers

1 vote
y=ax+b.
a=slope.
b=y-axis.
y=3x-3

User EFrank
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8.6k points
4 votes
This is the linear function ( the slope-intercept form ):
y = m x + b
If a line crosses the y-axis at ( 0, - 3 ) : b = - 3
m = 3 ( a slope )
Answer:
y = 3 x - 3
User Matsemann
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9.0k points
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