sets of numbers
Any number that can be written as a fraction is a?
Rational number
Describe Domain
The domain is all the possible x-values/inputs of a fuction
what is a function?
A function is an equation where every x(input) value has exactly one y(output) value.
Composition is a way to _________ functions.
Combine
Which is the largest planet of our solar system
Jupiter
true or false: all negative numbers are integers.
False
The range is all the possible y-values/ outputs of a function
Which test can determine if a graph is a function or not?
True or False:
f o g (x) = f(g(x))
True
What word is spelled incorrectly in every single dictionary?
Incorrectly!
which set(s) does '0' belong to?
Whole numbers, rational numbers, and integers
what is the domain of f(x)= sqrt(x)
[0,oo)
Is the relation a function?
{(1,5),(1,7),(3,9),(4,11)}
No, Because x=1 produces 2 inputs that are y= 5 and y=7.
f(x) =5x3+2
find f(3)
137
what is the shape of a Diamond called?
Rhombus
write the set for integers.
{....,-3,-2,-1,0,1,2,3,....}
Draw a graph with the domain
(-oo,0] and range (-oo,oo)
Check the graph
Find g(2)
g(x) = x3 + 5x2+ 8
g(2) = 36
f(x) = 2x + 3 , g(x) = x2
find (f+g)(4)
27
If an electric train is moving north at 100mph and wind is blowing to the west at 10mph, which way does the smoke blow?
An electric train has no smoke :)
Which of the following is not a rational number?
sqrt(81), sqrt(25), sqrt(21), 67
sqrt(21)
Draw a graph with the domain [-5,-1) U [-1,4] and Range (0,5]
check the graph
Determine the average rate of change for the function below, from x=−6 to x=−3.
C(x) = 2x2 + 4x + 1
-14
g(x) = (5x^2+6)/2 , h(x) = 2x
find (g/h)(2)
13/4
There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What color are the stairs?
there aren't any, it's a one-story house!