In a __________, for each element of the domain, there is only one cooresponding element in the range.
What is a FUNction?
100
_________form is an equation written in the form y=mx+b
What is SLOPE-INTERCEPT FORM?
100
Which of the following would give a line that would be PARALLEL to y=-3x-2
a) y=3x-1
b) y=1/3x-1
c) y=-3x-1
d) y=-1/3x-1
C
100
What is the difference between linear and nonlinear functions??
Linear: constant rate of change between points
Nonlinear: NOT a constant rate of change between points
100
What is the y-intercept of the line crossing these two points: (1,2) and (3,10)?
slope: 4
y-int.: (0,-2)
y=4x-2
200
Give one solution to the equation: y=3x
Possible Answers: (1, 3) (2,6) (3,9) (4,12) (5,15)....
200
In a ___________ in two variables is an equation in which the variables appear in separate terms, and neither of the variables contains an exponent other than 1.
What is a LINEAR EQUATION?
200
Graph the line y=2x-5
**Checked by teacher :)
200
Why is "slope" referred to "rise over run?"
Because it is the vertical change (change in y) over the horizontal change (change in x).
200
Who is your favorite teacher?
Miss Mills...obviously
300
TRUE OR FALSE: In an x/y table, x represents the independent variable.
TRUE!!!
300
___________is also known as "standard form", and involves the slope of the line and a point.
What is POINT-SLOPE FORM?
300
Which ordered pair is a solution to y=-3x-5 ?
a) (0,0)
b) (1,8)
c) ( 1,-2)
d) (1,-8)
D
300
What is the slope of a vertical line?
UNDEFINED (shout-out to Mr. Slope guy)
300
Look at the table on the board. Write an equation in slope-intercept form.
y=5/4x-1
400
TRUE OR FALSE: A vertical line is a function.
FALSE.
400
__________ is the value that decides the steepness of the line
What is SLOPE?
400
Which ordered pair is a solution to the following system of equations?
y=x
y=2x-2
a) (1,1)
b) (2,2)
c) (-2,-2)
d) (-1,-1)
B
400
What is the y-intercept of the line with the equation
y=5x-3
(0,-3)
400
What is the slope of the line x=-3?
UNDEFINED
500
The _________________ can be used to show the linear relationship approximated by real-life data points.
What is LINE OF BEST FIT?
500
Graph the line -4+y=1/2x
**Checked by teacher :)
500
What is the slope of the line with the equation
y=1/4x-2?
Also, what is the change in y, and what is the change in x? (what's the rise, what's the run)
Positive or Negative?
1/4
up 1, over 4!
Positive!
500
Find the solution of the system by SUBSTITUTION
x-5y=3
3x=2y-4