Two-Variable Linear Equations
Is (-5,12) a solution of y = -2x + 2 ? (Must show work to support answer)
12 =12
Yes!
Is this a function? Why or why not?
{( 7,4),(-6,-3),( 7,3),( 2,2),(20,1)}
NO! Domain repeats.
Find the slope of the line through points A and B, shown on the graph. Must be simplified!
1/2
If 3 – 3x < 20, which of the following could not be a value of x?
a) -6
b) 6
c) 7
d) -5
a) -6
The third planet from the sun is ...
Earth
List the domain of the relation: {(2,-3) (5,10) (-8,4) (-11,10)}.
2,5,-8, -11
Draw an example of a graph that is not a function.
Does not pass Vertical Line Test because the domain repeats.
Create a table with a slope of 3/2.
Y should be changing by 3. X should be changing by 2.
The first four numbers of a sequence are 5, 10, 20, 40. Assuming the pattern continues, what is the 6th term of the sequence?
160
How many playing cards are in a standard deck of playing cards?
52
List the range of the relation: {(-1,5) (0,1) (27,-2) (3,15)}.
5, 1, -2, 15
Given f(x) = 2x – 3, evaluate for f(2).
f(2) =1
Below are two ordered pairs from the graph of a line. Use them to determine the slope of the line.
(-1,3) and (2,7)
m = 4/3
Given f(x) = x2 – 9. What is f(3)?
f(3) = 0
Who was the first person to walk on the moon?
Neil Armstrong
State one possible solution for the equation y = x + 5.
examples: (-5, 0), (1, 6), and infinite more!
Given f(x) = x – 1 and g(x) = 2 + 5x, evaluate for f(-1) + g(2).
f(-1) + g(2) = -2 + 12 = 10
19) Ms. Everett loves wings. She bought 50 wings to share with friends. Her total was $66.
a) What is the cost per wing Ms. Everett paid for?
b) Assuming the cost per wing remains the same, how much would it cost for you to purchase 125 wings? (2 pts)
a) 1.32 dollars per wing
b) 165 dollars
For what value of x does 4(3x – 2) = 12?
5/3
What year did Grayslake Central first open?
1946
Create an equation that would have (1, 3) as a solution.
example: y= x+2
Infinite possible answers!
Draw a graph where h(5) = 6 and h(-2) = 0.
A line that goes through (5,6) and (-2, 0).
A line passes through the origin and through the point (2, 0). What is the slope of the line?
m = 0
If 2x = 3y = 6z = 48, what is the value of x * y * z?
3072
Outburst!
Answers will be read off outburst card.