Linear Function
Linear functions are those whose graph is a straight line.
A linear function has one independent variable and one dependent variable.
Write a linear function with a slope of -9 and a y-intercept of 5
y =-9x+5
What is the y - intercept of the graph?
(0,0) or the origin
What letter is used for the notation of slope?
m
Rewrite the following equation in slope-intercept form.
-2x + y = 3
y=2x+3
Ms. Brodowski went to college in what city?
Bonus 100 pts if you can state the name of the school.
New Orleans
Tulane University
x-intercept and y-intercept
The x intercept is the point where the line crosses the x axis. At this point y = 0.
The y intercept is the point where the line crosses the y axis. At this point x=0
Write a linear function in standard form where A=2 B=-4 and C=19
2x-4y=19
Sketch the following equation.
y = 2x - 3
Label the y-intercept & 1 other point on the line.
y-intercept: (0, -3)
another point: (1, -1); (2, 1); (3, 3); etc.
What is the slope in the following equation?
y=6-1/2x
m = -1/2
Rewrite the following equation in slope-intercept form.
3x + 2y = -6
y=-3/2x-3
What was Ms. Rosado's nickname from her dad?
Crayola
Slope
the steepness of a line
Write the linear function in this graph:

y=20x-15
Sketch the following equation.
y=4/3x
Label the y-intercept & 1 other point on the line.
y-intercept: (0,0)
another point: (1, 4/3); etc.
Find the slope of a line that passes through the points (0, 5) and (2, 10)
m=5/2
Rewrite the following equation in slope-intercept form.
x - y = -7
y=x+7
Ms. Rosado has:
a. A younger brother
b. A younger sister
c. An older brother
d. An older sister
b. A younger sister
Slope-Intercept Form
=y coordinate
=slope
=x coordinate
=y intercept
Write a linear function that passes through the points (0,2) and (-4,5).
y= 3/4x +2
Sketch the following equation.
y = -2
Label the y-intercept & 1 other point on the line.
y-intercept: (0, -2)
another point: (1, -2); (2, -2); (3, -2) etc.
What is the slope of the linear function
y = 14
0
Rewrite the following equation in slope-intercept form.
5x - 2y = -8
y=5/2x+4
Ms. Brodowski is a huge fan of what sports team?
Buffalo Bills!
Standard Form
Write a linear function that goes through the points (0, 4) and (-2, 8)?
y=-2x+4
Sketch the following equation.
x = 3
Label the y-intercept & 1 other point on the line.
y-intercept: doesn't have on!
another point: (3,0), (3,1), (3,2), etc.
What is the slope between the points (-5, 8) and (-5, 3)?
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Rewrite the following equation in slope-intercept form.
-4y = 2x - 12
y=-1/2x+3
Ms. Brodowski and Ms. Rosado have what kind of college degree?
a. Associates
b. Doctorate
c. Bachelors
d. Masters
c. Bachelors