Slope
Find the slope given the following:
f(x) = -5x + 9
What is -5?
The place on the y axis where the line begins to be graphed...
What is the y-intercept?
Is the set of ordered pairs a function? Why?
{(4,5), (3,2), (6,2), (7,9)}
Yes, because the x-values do not repeat.
Linear or Nonlinear?
y = 5
Reflect the point (4,3) over the y-axis.
(-4,3)
What is the slope of the line 4x + 2y = 16
m = -2
The process by which we locate plot points on a line according to the slope?
What is rise over run?
y = 3x + 5
Any function for which the value for x is squared?
What is non-linear?
Reflect the point (6,-1) over the x-axis.
(6,1)
The slope of the following line is increasing or decreasing?
y = (1/5)x + 4
increasing
What is another way to say slope?
rate of change
rise/run
rate
unit rate
A vertical line.
Not a function.
True or False:
All functions are linear.
False
Write 1.56 x 10^9 in standard form.
1,560,000,000
The slope of the following formula:
-21x + y + 7x = -5
What is 14?
What is another way to say y-intercept?
initial value
A horizontal line.
Function.
Jerry draws a perfect square on a coordinate plane. Mary says it is a perfectly linear function because all the lines are straight, and the angles form perfect 90 degrees. Is she right?
Write 560,000 in scientific notation.
5.6 x 10^5
Find the slope using the following points:
(7, 10) and (12, 20)
What is 2?
What test do we perform to determine if a relation is a function or not?
The VLT (vertical line test)
Is the set of ordered pairs a function? Why?
{(5,5), (3,5), (5,5), (5,9)}
Not a function because the x-values repeat.
Is this table linear or nonlinear? Why?
x | y________
3 | 5
4 | 8
5 | 10
6 | 13
It is nonlinear because there is no constant rate of change.
Simplify (4x4y6z2)3
64x12y18z6