Math Example

It’s time to review what you learned in this lesson before your quiz. Choose the best answer for each.

Graph the relation {(1,7), (2, 15), (3, 23), (4, 31)}

NOT QUITE
Graph using the (x,y) pairs by first first the x value along the x-axis and second the y value along the y-axis. Plot where the values intersect.

CORRECT!
Graph using the (x,y) pairs by first first the x value along the x-axis and second the y value along the y-axis. Plot where the values intersect.

NOT QUITE
Graph using the (x,y) pairs by first first the x value along the x-axis and second the y value along the y-axis. Plot where the values intersect.

List the range of the relation {(1,7), (2, 15), (3, 23), (4, 31)}.

NOT QUITE
The range is the set of y values.

CORRECT!
The range is the set of y values.

NOT QUITE
The range is the set of y values.

Name the type of relation for {(1,7), (2, 15), (3, 23), (4, 31)}.

CORRECT!
The real number system is a system that includes rational and irrational numbers. Within the rationals are integers and natural numbers.

NOT QUITE
The real number system is a system that includes rational and irrational numbers. Within the rationals are integers and natural numbers.

Is the relation {(1,7), (2, 15), (3, 23), (4, 31)} a function? Choose the best answer.

NOT QUITE
A function is a relation that has only one output for every input.

CORRECT!
A function is a relation that has only one output for every input.

NOT QUITE
A function is a relation that has only one output for every input.

For the table below, which value is equal to 170.

X	Y
5	70
8	100
15	170
25	270
30	320

CORRECT!
f(a) means the output when the input is a.

NOT QUITE
f(a) means the output when the input is a.