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10 questions from this quiz
The gradient
The y-intercept
vertical change ÷ horizontal change
They have the same gradient
c=4c = 4c=4
y=2x+1y = 2x + 1y=2x+1
y=4x−3y = 4x - 3y=4x−3
y=12x+5y = \frac{1}{2}x + 5y=21x+5
Substitute the original point back in
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