Functions Quick Check
2 of 52 of 5 Items
Question
What is the value of the function y=18x−13 when x=−4?(1 point)
Responses
−16
negative 16
−15
negative 15
−13.5
negative 13.5
−12.5
7 answers
The correct answer is -15.
Functions Quick Check
3 of 53 of 5 Items
Question
Use the image to answer the question.
An illustration shows a coordinate plane with four quadrants. The x and y axes range from negative 6 to 6 in increments of 1. A semicircle is graphed on the plane. The semicircle passes through points plotted at coordinates left parenthesis 0 comma 6 right parenthesis, left parenthesis 6 comma 0 right parenthesis, and left parenthesis 0 comma negative 6 right parenthesis.
The graph of a relation is given. Apply the vertical line test to determine if this relation is a function.
(1 point)
Responses
The relation is a half-circle.
The relation is a half-circle.
Yes, the given relation is a function.
Yes, the given relation is a function.
There is not enough information to determine whether this relation is a function.
There is not enough information to determine whether this relation is a function.
No, the given relation is not a function.
3 of 53 of 5 Items
Question
Use the image to answer the question.
An illustration shows a coordinate plane with four quadrants. The x and y axes range from negative 6 to 6 in increments of 1. A semicircle is graphed on the plane. The semicircle passes through points plotted at coordinates left parenthesis 0 comma 6 right parenthesis, left parenthesis 6 comma 0 right parenthesis, and left parenthesis 0 comma negative 6 right parenthesis.
The graph of a relation is given. Apply the vertical line test to determine if this relation is a function.
(1 point)
Responses
The relation is a half-circle.
The relation is a half-circle.
Yes, the given relation is a function.
Yes, the given relation is a function.
There is not enough information to determine whether this relation is a function.
There is not enough information to determine whether this relation is a function.
No, the given relation is not a function.
No, the given relation is not a function.
Functions Quick Check
4 of 54 of 5 Items
Question
Which of the following is an ordered pair of the relation y=−23x+6?(1 point)
Responses
(3,4)
left parenthesis 3 comma 4 right parenthesis
(3,8)
left parenthesis 3 comma 8 right parenthesis
(0,−23)
left parenthesis 0 comma negative Start Fraction 2 over 3 End Fraction right parenthesis
(1,4)
4 of 54 of 5 Items
Question
Which of the following is an ordered pair of the relation y=−23x+6?(1 point)
Responses
(3,4)
left parenthesis 3 comma 4 right parenthesis
(3,8)
left parenthesis 3 comma 8 right parenthesis
(0,−23)
left parenthesis 0 comma negative Start Fraction 2 over 3 End Fraction right parenthesis
(1,4)
To find the ordered pair in the relation y = -23x + 6, we substitute the given x-values into the equation and solve for y.
For x = 3:
y = -23(3) + 6
y = -69 + 6
y = -63
So, the ordered pair is (3, -63).
Therefore, the correct response is (3, -63).
For x = 3:
y = -23(3) + 6
y = -69 + 6
y = -63
So, the ordered pair is (3, -63).
Therefore, the correct response is (3, -63).
pick one
The ordered pair for the relation y = -23x + 6 is (3, -63).
1 answer