Functions
In order for a relation to be a function, the _____ can not repeat; this means that each input has exactly one output.
What are the "x-values"?
Noah knows two of the angle measures of triangle PQR. Angle Q is 75 degrees and angle R is 51 degrees. What is the measure of angle P?
54 degrees
What should you do tonight?
A) Play video games
B) Go to bed early
C) Text your friends until 2 am
B) Go to bed early!
Write 567,327 in scientific notation.
What is 5.67327 x 105
Describe whether or not the relation below is a function: (3, 2), (-3, 2), (5, 2), (-5, 2)
This is a function because the x-values do not repeat.
Kaylah wants to know if a photograph is dilated by a scale factor of 2 and the original photograph is 3 by 7 what will the new photograph perimeter be?
C. 40
What should you do tomorrow morning?
a) Wake up late
b) Miss the bus
c) Eat a good breakfast
c) Eat a good breakfast!!!
Write 0.000678 in scientific notation.
What is 6.78 x 10-4
This is used to determine whether or not a graph is a function.
What is the vertical line test?
Madison & Jonathan compared their bowling scores. Jonathon's score was 109 points greater than Madison's total score. Write an expression that represents Jonathan's score based on m, Madison's score.
b) m + 109
True or False: When writing an answer with pi, you should round to the nearest hundredth place.
False (Write an exact answer with pi and an answer with ALL the digits from your calculator.)
Write (4 x 103) (2 x 104) in scientific notation.
What is 8 x 107?
The equation of the linear function that passes through the points (1, 3), (3, 5), and (4, 6)
What is y=x+2
At her job, Ashley is paid $40 for the day. When she drives her car for work she is paid an additional $0.52 per mile. Write an equation to represent how much she earns in a day. How much is Ashley paid for the day if she drives 100 miles in her car?
y = 40 + 0.52x
$92
What should you NEVER do on a question you do not know the answer for?
a) answer
b) leave it blank
Leave it blank Even if you do not know the answer, make an educated guess and show as much work as possible. You will get partial credit!
When dividing scientific notation expressions, you _____ the first factors and ________ the exponents.
What is divide the first factors and subtract the exponents?
Which ordered pair represents a point that would lie on the graph of the linear function y = 2x - 4? Explain how you know. (2, 4), (6, 8) (-2, 0) or (5, 1)
What is (6, 8) because if you substitute in 6 for x into the linear function, the correct output is 8.
Solve for x:
3(x - 8) + 2(x + 3) = 7
x = 5
What should you always remember to do at the end of your test?
a) Read a book
b) Sleep
c) Review your answers
c) Review your answers Check, and recheck your answers. You have plenty of time!!!
A rectangular section of a wheat farm has a length of
5 x 104 meters and a width of 6 x 103 meters.
What is the area of the wheat farm in scientific notation?
What is 3 x 108 square meters?