Is it a function?
Is this a function:
A straight horizontal line
Yes
What letter represents the input in slope-intercept form?
Hint: y=mx+b
x
Find the slope given the following:
y = -20/4x + 9
What is -5?
True or False:
A parabola is always linear.
What is false?
A line with a y-intercept of -6 which crosses through point (7,8)?
What is y = 2x - 6?
How can you tell if a graph is a function?
Vertical Line Test
What letter represents the output in slope-intercept form?
Hint: y=mx+b
y
What is the slope of the following equation?
y=3/5x-12
3/5
Linear or non-linear: Any function for which the value for x is squared?
What is non-linear?
A line with a slope of 1/2 crossing through point (12,-15)
What is y = 1/2x - 21?
Is this a function:
A graph of a circle
No
What is the output of this equation when the input is 3?
y=3x+7
16
Is the slope of the following line is increasing or decreasing?
31y = -2x + 21
Decreasing
Linear or non-linear: 5y+2x=10
Linear
A line that is rising at -288 and running at 12 that intercepts the y axis at (0, 15).
What is -24x + 15?
How can you tell if a table represents a function?
If there are no repeating x-values with different y-values.
What is the input of this equation when the output is 10?
4x+3y=50
5
Find the slope using the following points:
(7, 10) (12, 20)
What is 2?
Linear or non-linear: Jerry draws a perfect square on a coordinate plane. Mary says it is a linear function because all the lines are straight and the angles form perfect 90 degrees. Is she right?
What is NO!
The equation for a horizontal line that crosses through point (6,-28)
What is y = -28?
Is this a function:
A vertical line
No
What is the output of the following when the input is
7?
3y=5x-5
10
What is the slope of the following formula:
-21x + y + 7x = -5
What is 14?
A line that crosses through the following points:
(2, -10) and (14, -22)
What is y = -x - 8?