Slope or Y-intercept
Slope
Graphing Lines
Solving for Slope-Intercept
Mystery
100
Slope is...
y = 3x + 2 ?
m = 3
100
m=-1/1
100
Graph the line y = 3x + 2
begin at +2 on the y-axis,
then move up 3 over one
100
4x + y = 0
y= 4x
100
What is another way to describe slope? (There can be more than one answer)
Answers include, but are not limited to, "rise over run," "steepness of a line," and "rate of change."
200
y-intercept is...
y = 1/2x - 1 ?
b = -1
200
(2,8) and (1,4)
m=4/1
200
Graph the line y = 1/2x - 1
begin at -1 on the y-axis
then move up one over two
200
5x + 6y = -30
y = -5/6 x - 5
200
What is the slope of the equation y = 6 - 1/3x?
m = -1/3
300
Slope is...
y = -2/3x + 2/3 ?
m = -2/3
300
y = -2/3x + 2/3 ?
m = -2/3
300
Graph the line y = -2/3x + 3 ?
begin at 3 on the y-axis,
then move down 2 over 3
300
5x - 6y = 28
*must be fully simplified.
y = 5/6x - 14/3
300
What’s the diameter of a basketball hoop in inches?
18 inches
400
y-intercept is...
y = 9x ?
b=0
400
(7,0) and (7,-6)
m=undefined
400
Graph the line y = 9x
begin at 0 on the y-axis (the origin)
then move up 9 over 1
400
0 = -12 - 5x + 4y
y = 5/4x +3
400
What percentage of Americans are left handed? (Closest answer wins)
11%
500
Slope is...
y = 5 ?
m = 0
500
(1,18) and (-13, -7)
m=24/14
500
Graph the line y = 5
graph points with y-coordinate 5
(0,5), (1, 5)
it makes a horizontal line
500
y+5=4/5 (x+5)
y=4/5x -1
500
A taxi company charges a $6 boarding fee plus $3 for every mile driven. Create an equation to represent the total cost, y, of taking the cab x miles.
y = 3x + 6