Function of X

A relation contains the points (1,2), (2,-1), (3,0), (4,1), and (5,-1). Which statement accurately describes this relation?

• The relation does not represent y as a function of x, because each value of x is associated with a single value of y.

• The relation represents y as a function of x, because one value of y is associated with two values of x.

• The relation does not represent y as a function of x, because each value of y is associated with two values of x.

• The relation represents y as a function of x, because each value of x is associated with a single value of y.

Tags

CCSS.8.F.A.1

Which statement describes the mapping?

• The mapping represents y as a function of x, because each y-value corresponds to exactly one x-value.

• The mapping does not represent y as a function of x, because two of the x-values correspond to the same y-value.

• The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.

• The mapping does not represent y as a function of x, because there are more x-values than different corresponding y-values.

Tags

CCSS.8.F.A.1

2019-Q5

Which graph represents y as a function of x?

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2019-Q39

Which set of ordered pairs represents y as a function of x?

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Tags

CCSS.8.F.A.1

For what value of x does f(x) = -2?

• 0

• -5

• 3

• -3

Tags

CCSS.HSF.IF.A.2

Which of the following is the correct definition of a function?

• A relation where each input has exactly one output

• A relation where each input has multiple outputs

• A relation where each output has multiple inputs

• A relation where inputs and outputs are the same

Tags

CCSS.8.F.A.1

Which of the following represents a function?

Tags

CCSS.8.F.A.1

If f(x) = x - 5, what is the value of x when f(x) = 15?

• 20

• 10

• 5

• 0

Tags

CCSS.HSF.IF.A.2

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5

• x = 5

• x = -50

• x = 30

Tags

CCSS.HSF.IF.A.2

Which of the following is the graph of a linear function?

• A parabola

• A straight line

• A circle

• A hyperbola

Tags

CCSS.8.F.A.3