Identify the domain of the following:
{(2,3), (4,5), (5, 9)}
What is 2, 4, 5
100
What is an independent variable?
What is x-values or the variable that is not affected by the variation of another variable.
100
Solve 3x+2=8
What is x=2
100
Solve: x+1>8
What is x>7
100
What is a function? How can you tell that it is a function?
What is a relation that pairs one x value to one y value. It has no repeating x values or you can use the vertical line test.
200
Identify the range of the following:
{(9,0), (-1,2), (-3, -4)}
What is -4, 0, 2
200
What is a dependent variable?
What is y-values or the variable that depends or relies on the independent variable.
200
Solve:
3(x-4)=10
What is 22/3 or 7.3
200
Solve: -3x+8<14
What is x>-2
200
Is the following a function?
{(-2, 3), (-3,4), (-2, 9), (-4, 8)}
What is NO
300
What is the domain of y=3x+2?
What is Infinity or all real numbers.
300
Jeffrey threw a tennis ball and measured the distance of the throw and how long it was in the air. What is the independent variable?
What is Time
300
Solve:
1+x= 7x-8
What is x= 1.5
300
Solve -3(x+1)>12
What is x<-5
300
{(3,9), (4,9), (5,9), (6,9), (7,9), (8,9)}
What is YES
400
What is the range of the function f(x)=3x+2
What is infinity or all real numbers.
400
Trinity was baking cookies and measured out how much flour she would need to make the cookies. The more flour she used, the more cookies she was able to make. What is the dependent variable?
What is the number of cookies?
400
2(x+2)= 3x-4
What is x=8
400
2(x+2)>x+1
What is x>-3
400
Is the graph of the equation y=x^2+3 a function?
What is YES
500
What is the domain and range of the quadratic function with a vertex of (1,2)? y=x^2-2x+3
What is Domain: all real numbers (or infinity)
Range: 2 to infinity or all real numbers greater than or equal to 2
500
Isaiah was working at a part time job after school. He counted how many hours he worked that week so that he could determine the total amount of money he would earn. What is the independent variable?