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10 questions from this quiz
AB=(x2−x1)2+(y2−y1)2AB = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}AB=(x2−x1)2+(y2−y1)2
Steepness of line; 'rise over run'
Add the coordinates and divide by 2
When all gradients between points equal
m1=m2m_1 = m_2m1=m2
m1×m2=−1m_1 \times m_2 = -1m1×m2=−1
−1m-\frac{1}{m}−m1
Gradient-intercept form: y=mx+cy = mx + cy=mx+c
x2+y2=r2x^2 + y^2 = r^2x2+y2=r2
The radius is perpendicular to tangent
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