Relations
Functions
Intercepts
Domain/Range
Slope
100
Which of the following ways can be used to represent a relation?
a) Table of Values
b) Coordinate Points
c) Mapping Diagrams
d) all of the above
D - All of the above
100
C
100
What is the coordinate of the x-intercept in this graph:
(6,0)
100
True or False:
Closed dots are for "greater than or equal to" and "less than or equal to"
Open dots are for "greater than" or "less than"
TRUE
100
What is the slope of this graph?
Undefined
200
True or False:
Mr. Carothers is making a graph comparing the amount of hours that his students study vs their grades. He should graph this using discrete data because "hours studied" must be whole numbers.
False! You can graph this as continuous data
200
If f(x) = -2x - 1, determine f(5)
-11
200
What is the y-intercept of this graph:
(0,0)
200
What is the domain of this graph, written in INTERVAL NOTATION?
(2,8]
200
What is the slope of a line passing through points A and B:
A = (8,-6) B = (5,-6)
ZERO
300
A
300
If f(x) = x2 + 2, determine f(9)
83
300
Determine the x-intercept of
y = 3x + 30
(-10,0)
300
What is the range of this graph, in INTERVAL NOTATION?
[-2, ∞)
300
If a line AB has a slope of -8, what would the slope of line CD be if AB and CD were perpendicular?
1/8
400
Which of the following scenarios best describes the graph below:
a) Billy walks to his home, stays there for a bit, then comes back to school
b) Billy walks to his school, stays there for a bit, then comes back home
c) Billy walks to his house, takes a break part way, then finishes his walk home
d) Billy walks to his school, takes a break part way, then finishes his walk to school
B
400
If f(x) = x + 8, solve x when f(x)= -7
-15
400
Determine the y-intercept of
y = 14x - 7
(0,-7)
400
What is the domain of this graph, written in SET NOTATION?
{x l -3 < x ≤ 1, x E R}
400
Determine the missing coordinate.
m = -4; Point A = (6,-1) Point B = (13,X)
(13, -29)
500
Sammy works at a company that pays him $20/hour. At the start of each day, Sammy also receives $5 to offset his travel costs.
If Sammy earns $245 in a day, how many hours did he work?
12 hours
500
Write y = 3x + 1 in function notation
f(x) = 3x + 1
500
Determine the y intercept of
4xy3 - 9x2 = y + 6
(0,-6)
500
What is the range of this graph, written in SET NOTATION?
{y l 1 ≤ y < ∞, y E R}
500
Determine the value of K so that the lines are perpendicular:
m1 = -4 ; m2 = 4K
(Leave your answer as a fraction)
K = 1/16