Blast from the Past
Blast from the Past
Is It a Function?
Domain and Range
Vocabulary
100
Rational or Irrational? (Must get all correct for points)
1. π (pi)
2. 42
3. 20/6
4. 89.3967668...
5. -83
1. I
2. R
3. R
4. I
5. R
100
Simplify (-17) + (-15).
What is (-32)?
100
The name of the test used to determine whether a graph is a function or not is called the ____________ _______ test.
What is vertical line?
100
The domain of the relation {(1,0), (-2, 3), (3, 4), (1,-3), (0,5), (5,5), (0,1)} would be:
What is {1, -2, 3,0,5}?
100
The name of the horizontal axis is called______________. The name of the vertical axis is called______________________.
What is the x-axis? What is y- axis?
200
3n+5=17
Solve for n
n=4
200
Is the following number rational or irrational? Why? 5.234234786...
Irrational, it keeps going
200
A function is a special type of relation where every ___ value has exactly one output, or ___ value.
What is x, y?
200
Write the range of this relation: {(8,7), (-6, 3), (2, 0), (7,8), (3,-6), (8,3)}
What is {7, 3, 0, 8, -6}?
200
Another name for the coordinates (0,0) would be the _______________.
What is the origin?
300
The diagonal of a rectangle is 25 in. The width is 15 inches. What is the length?
20 inches
300
7x+2(-2x + 9)=42
7x+2(-2x + 9)=42
7x-4x+18=42
3x+18=42
-18 -18
3x=24
/3 /3
x=8
300
Determine if the following relation is a function. Show your work using either a graph or an input/output table. {(9, 0), (3, 0), (2, 2), (-3, -4)}
What is YES?
300
Name three ways to show a relation.
What is a set of ordered pairs, graph, mapping diagram, and table?
300
A set of ordered pairs is called a _______________.
What is a relation?
400
Rational Approximation.
Place the following numbers on the number line in the correct order
A. √52 B. √9 C. -√16 D. 3 E. 4.5 F. -√30
Decimal Approximation
A. 7.2 B. 3 C. -4 D. 3 E. 4.5 F. -5.47
400
Solve for b: -2b + 5 = -15
b = 10
400
Is the following relation a function? WHY?
No, because the -2 repeats. It has 2 outputs- 1 and 3
400
Show the relation {(0, 4), (-7, 5), (8, 3), (-7, 2)} as a table.
x y
0 4
-7 5
8 3
2
400
Give 10 examples of an ordered pair.
Answers will vary.
500
Must get all correct for full points
1. 53 * 512
2.(-w)(-10w3)
3. 36b8/6b2
1. 515
2. 10w4
3. 6b6
500
A soccer field is a rectangle 100 meters wide and 130 meters long. The coach asks players to run from one corner to the other corner diagonally across. What is that distance?
a2+b2=c2
1002+1302=c2
10,000+16,900=c2
26,900=c2
c=164.012meters
500
Is the following relation a function? WHY?
Yes because every input has only one output and none of the x values repeat.
500
Show the relation {(6, 4), (-3, -2), (6, 0), (-4, 4)} as a table AND a mapping diagram. Write the domain and range.
See whiteboards. D: {(6, -3, -4)} R: {(4, -2, 0)}
500
Write an example of an ordered pair. Circle the first number. This number is called the________________.
What is the x coordinate?