Hodgepodge
In what "lesson" in Chapter 4 was parallel and perpendicular lines introduced?
4
Write an equation in "slope-intercept" form
(- 2, 5) m = 3
y = 3x + 11
Lines in the same plane that do not intersect are called ________ lines.
Parallel
Write an equation in slope-intercept form for a line that passes through (- 3, 5) and is parallel to y = 2x - 4
y = 2x + 11
Find the root:
0 = 2x + 8
x = (- 4)
What does "point-slope" form look like?
y - y 1 = m (x - x 1)
Write in slope-intercept form:
(- 1, 12) and (4, - 8)
y = - 4x + 8
An equation of the form: y = mx + b
is in what form?
Slope-intercept
Write an equation in slope-intercept form for the line that passes through (4, 7) and is perpendicular to y = 2/3x - 1
y = (- 3/2x) + 13
Name the property:
a (b + c) = ab + ac
Distributive property
What are the first four words in the Chicago Bears fight song?
BEAR DOWN CHICAGO BEARS :)
Write in slope-intercept form
(- 4, - 2) m = (- 3/5)
y = - 3/5x - 4 2/5
Lines that intersect at right angles are called _____________ lines.
Perpendicular
Parallel lines have the same what...but different what?
Slope
y-intercept
The sum of any number and 0 is equal to the number. Thus, 0 is called the what?
Additive inverse
Who does the University of Arizona football team play this coming weekend?
Colorado
When you use a linear equation to make predictions beyond the range of the data
Linear extrapolation
f - 1 (x) is the mathematical symbol for what?
Inverse functions
A ___________ shows the relationship between a set of data with two variables.
Scatterplot
Solve:
5x + 5 = 3 (5x - 4) - 10x
No solution
What test will you be taking on December 9th
HSPT :)
Write the following in slope-intercept form:
Tickets to a concert cost $8 each plus a processing fee of $4 per order.
y = 8x + 4
The range of a relation is the _____ of its inverse function.
Domain
***Tough one :)
There are 3 types of scatterplots...name them.
Positive...negative...and no correlation
Solve:
| b + 4 | = 2
b = { - 6, - 2 }