Equations
What is the slope-intercept formula?
y = mx + b
Given a slope of 6, what is the slope of a parallel line?
6
Given a slope of 1/5, what is the slope of a perp line?
-5 or - 5/1
(-2 , 3) and (2, 6)
(-1, 0) and (3, 3)
Parallel
What is the slope formula?
m =y2 - y1
---------
x2 - x1
Write an equation that passes through the point and is PARALLEL to the line:
(4,7); y = 3x +6
y = 3x - 5
Write an equation that passes through the point and is PERP to the line:
(4, -1); y = 2x - 4
y = -1/2x + 1
(0 , 2) and (5, 4)
(1, 8) and (3, 3)
Perp
Given the equations y = -1/3x +2 and y = 1/3x, are they parallel, perp, or neither?
neither
What is the point-slope formula?
y - y1 = m(x - x1)
Write an equation that passes through the point and is PARALLEL to the line:
(-10, 1); 2x + 5y = 15
y = -2/5x - 3
Write an equation that passes through the point and is PERP to the line:
(2 , -5); x - 4y = 20
y = -4x +3
(-2 , 3) and (2, 6)
(-1, 0) and (3, 3)