Geometryeasy · Past Paper
What is the equation of the line whose slope is -1 and y-intercept is 3?
Ax + y = 3
Bx - y = 3
Cy - x = 3
Dx + y + 3 = 0
✓ Correct Answer: A — x + y = 3
y = mx + c => y = -1x + 3 => x + y = 3.
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