Formulas
What is Point-Slope Formula
y-y1=m(x-x1)
100 slope =2/3 ; y-intercept = -1
y=2/3x - 1
y= -1/4x -2
y= 4x+5
Perpendicular
(2, 3) PARALLEL to y = x – 4
y=x+1
What is Slope-Intercept Form
y=mx+b
2x + 8y = 16
y=-1/4x+2
y= -2/5x+3
y= 2/5x+8
Neither
(-2, 8) PERPENDICULAR to y = 2x + 5
y=-1/2x+7
What is Slope Formula?
y2-y1
x2-x1
3x – y = 5
y=3x-5
AB (3, 8) (-6, 5); CD (-6, 7) (-3, 8)
Parallel
(-6, -1) PARALLEL 2x + 3y = 3
y=-2/3x-5
What is Standard Form
ax+by=c
(1, 4); slope = -2
y=-2x+6
AB (-1, 3) and (1, 5);
CD (2, 3) and (-2, 7)
Perpendicular
(-2, -11) PERPENDICULAR to x + 4y = 8
y=4x-3
Give an example of a linear equation
Y=mx+b
(-5, -11) and (-2, 1)
y=4x+9
4y = 3x – 4
4x + 3y = -6
Perpendicular