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math, correction

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Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.

Problem #1:
Slope: -2; y-intercept: (0,4)

my answer:
The points I used to graph were:
(0, 4) and (2, 0),
the equation is: Y= -2x + 4

Problem #2:
Slope: 5; y-intercept: (0, -2)

My answer:

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