Finding Slope of a Line
Identify the slope of the following equation:
2y = -x + 6
-1/2
What variable represents the Y intercept in the slope intercept form of a line?
b
What equation represents slope intercept form?
y = mx + b
What is the slope for :
y = x/3 + 6
1/3
Write an equation to X Y
represent the chart: -5 10
8 -16
-20 40
Y = -2 X
Identify the slope of the following equation
3x + y = 10
slope is -3
Describe the easiest way to graph an equation in standard form
Find the X and Y intercepts by substituting in zero. Plot the 2 pts. Draw a line.
In the following linear equation,
what is the y-intercept?
y = -3/4x
0
Give one specific direct variation equation.
Any equation with only a slope: y =4x
Write an equation for a vertical line through the point (-3, 6)
x = -3
Name two ways to describe slope
Possible answers: rate of change
rise over run
slope = m in y = mx + b
slope formula
Describe how to graph the following equation:
y = 1/3x + 4
Graph should start with the point at (0, 4)
Movement should be 1 up and 3 to the right continuing to another point.
Rewrite this equation in slope-intercept form
x + y = -12
y = -x - 12
What is the slope of this line?
x = 5
Undefined Slope
Write an equation for a line with the following slope and points.
m = 2/3 and (-3, 4)
y = 2/3x + 6
Find the slope of the line that includes the following points
(4, -5) (-4, 5)
-10/8 which simplifies to -5/4
Describe how the graph looks:
y = -2
A horizontal line drawn through -2 extending on both sides of the y-axis.
Rewrite the following equation in slope-intercept form. 3x + 6y = -18
y = -1/2x - 3
Mark received $500 for his birthday. He puts it all in the bank and keeps adding $20 allowance money each week.
Write a linear function relating T for total in the bank and m for number of months.
T = 20m + 500
Write an equation for a line with the following two points.
(15, -10)
(5, 10)
slope = -2 y intercept = 20
y = -2x + 20
Find the slope of the line that includes the following points
(-12, -9) (-3, -3)
-6/-9 = 6/9 = 2/3
Give 2 different points that lie on the line:
y = 1/2x -5
Answers vary.
Half of X, then subtract 5, should equal Y
Rewrite the following equation in slope-intercept form. 3x - 2y = -20
y = 3/2x + 10
What type of line is NOT a function?
A vertical line
The amount y of money(in $) you have left after playing x games at a carnival is
y = -0.75x + 10
How much money do you have after playing 8 games?
y = -0.75(8) + 10 y = -6 + 10 y = 4
$4 dollars left after playing 8 games.