What is the y intercept of y=2x-1
-1
What is the y-intercept of the graph y=-3x+2?
(0,-3)
What is the slope of the linear function
y = 14
0
Rate of change
Is the slope
Draw on the board parallel and perpendicular lines.
Lets see the boards!
If given a graph you find slope by?
Counting rise over run
What linear function represents the graph?

y=3x+3
A linear function has a slope of -3 and passes through the point (2,-2).
Write the equation of the line in slope-intercept form.
y=-3x+4
Find slope
-1/5
The point where a line crosses the y-axis. It is the value of y when x=0.
Y-Intercept (b)
How do you know if two lines are parallel?

What is the slope of the table?
Slope = 3

What linear function represents the graph?
Y= 3/4x - 5
Write a linear function for a line that passes through the points (0,2) and (-4,5).
y= 3/4x +2
Find the slope of a line that passes through the points (0, 5) and (2, 10)
Slope = 5/2
In a function, the _______ is the independent variable. It is the value that is substituted into the function to determine the output.
Input
How do you know these lines are perpendicular?
They have negative reciprocal slopes and both lines intersect.
What is Ben's favourite animal?
Otter (sometimes a bear)
Write a linear equation for this graph

y=2
Write an equation

Find the slope of a linear function that contains the points (-2 , 8) and (5 , -13)
-3
If given more then one equation what are 3 potential reationships to look out for?
Parallel, perpendicular, undefined
Write and graph an equation parallel to
y=2x-4
(will vary)
What's Renee's dog named?
Sammy!
Write a linear function to represents this graph:

y=20x-15
Write an equation


What is the slope of the line with equation x = -7?
Undefined.
What is the point called where two or more linear equations intersect?
Solution
Write and graph a perpendicular equation to the following:
y=1/4x+2
(answers will vary)
Write an equation for this graph
y=x-3