Mystery
What are the four types of slope?
Positive, negative, zero, and undefined
What is the x-coordinate of the point where the graph intersects the x axis called?
What is the x intercept
What is the slope of a horizontal line?
Zero
What is slope intercept form?
y=mx+b
Write the linear equation in point slope form: Slope=-7 ; (4,2)
y-2 = -7(x -4)
What is the standard form of a linear equation?
Ax+By=C
Find the x intercept: 2x- 4y=8
(4, 0)
What is the slope of a vertical line?
Undefined
Write the equation in slope intercept form: slope=0, y intercept =-5
y=-5
What lines have the same slope?
parallel
Convert into Standard Form of linear equation: y=x+3
Yes can be written as
x - y =-3
Find the x and y intercepts of 3x+4y=24
x=(8, 0) and y=(0,6)
Find the slope of (4,-2) and(-1,2)
What is m = -4/5
Write the equation in slope intercept form: slope=4 and (2,5) is on the line
y=4x-3
How do you know when you have perpendicular slopes?
Name the three different forms for linear equations.
Standard form, Point-slope form, Slope-intercept form
Find the x and y intercepts of 3x- 2y=12
x=(4,0) and y=(0,-6)
Find the slope of (20,3000) and (60,2000)
What is m = -25
Graph the equation on your white board: y= 4x-3
See graph
Write this equation in point slope form & in slope intercept form: slope=-4, (-1,-2)
Point slope form: y+2= -4(x+1) Slope intercept: y=-4x -6
Darius has $30 to spend on food. Takis cost $4.00 each and Doritos cost $3.00 each. What equation in Standard Form determines the number of Takis and Doritos he can buy?
4x + 3y = 30
Find the x and y intercepts of 2x + 4y=8. Then graph it on your white board.
x=(4, 0) and y=(0, 2)
Find the slope of the equation: 6x + 5y=30
What is m = -6/5
Write the equation in slope intercept form and graph: 3x+2y=8
y=-3/2x+4 See graph
Write the equation in point slope form and in slope intercept form: (1,-4) and (3,2)
Point slope: y+4=3(x-1)
slope intercept: y=3x -7