Slope & Linear Equations Key words/Formulas
The shape that we refer to when we are trying to find slope on a graph...
Slope Triangle
What is the slope of a horizontal line (going straight across the graph)
Zero
Write the equation of a line with the slope of 3 and y-intercept of -5
y=3x -5
y2-y1/x2-x1
Write the equation of a line with the slope -4/5 and y-intercept of 6
y=-4/5x + 6
In an equation of a line, what does "m" stand for?
Slope
Find the slope between the points (5, 8), (0, -2)
-10/-5 = 2
Sketch the graph of the line y=4/5x -2
Start at (0,-2) move up 4 and over 5 on the graph for a positive slope.
In an equation of a line, what does "b" stand for?
y-intercept
Find the slope between the points (12, 8) and (-12, 5)
-3/-24 = 1/8
Start at (0,-1) and move up 5 and to the right 1 for a positive slope.
What is the equation of a line?
y=mx+b
Find the slope between the points (6, -2) and (-3, -4)
-2/-9 = 2/9
Sketch the graph of the line y=-3/2x - 4
Start at (0,-4) then move up or down 3, then left or right 2 (to end up with a negative slope)