What is the equations in slope intercept form of:
(-4,-2) and (-1,3)
y=-x+2
What form of equations do we use for lines?
y = mx + b or slope intercept form.
How can you check if you are shading correctly?
Use a Test Point
Write an equation for a vertical line through the point (-3, 3)
x = -3
Name two ways to describe slope.
Possible answers: rate of change, rise over run, (y2 - y1)/( x2 - x1), slope = m in y = mx + b
Which way do you shade and what type of line do you have if you have this inequality: <
Shade below and dashed line
Write an equation for a line with the following slope and points.
m = 2/3 and (0, -2), (3, 0)
y = 2/3x - 2
Graph the following equation. 8x - 4y > 16
Should be rewritten as y < 2x - 4 and then graphed.
Write an equation for a line with the following two points. Find the slope and y intercept. (15, -10) (5, 10)
slope = -2 y intercept = 20
y = -2x + 20
Solve then identity the parts of the equation.
-5x - 2y = -5
y = -(5/2)x + 2.5
m= -5/2
b= 2.5
Is x = 2 a solution to the equation 2(x - 5) + 3 = 13 ?
No it is not a solution.
Write an equation perpendicular to y=5x+3 that passes through the point: (0,-2)
y = -(1/5)x - 2