Algebra I Keystone 2019 PA State Exam

A system of inequalities is shown. Which graph represents the system?

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Tags

CCSS.HSA.REI.D.12

Which graph shows the solution set of the inequality |2x - 7| > 3?

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Which statement about the relation is true?

• The relation is not a function of x because all functions are linear.

• The relation is a function of x because values of x increase toward infinity.

• The relation is a function of x because each value of y corresponds to one value of x.

• The relation is not a function of x because more than one value of y may correspond to the same value of x.

The set of ordered pairs shown is a relation that is a function of x.

{(-5, 1), (-4, 1), (-3, 1), (-2, 1)}

Which ordered pairs could be included in the set so that the relation remains a function of x?

• (-6, 1) (-5, -1)

• (-6, 1) (-1, -1)

• (-2, 2) (-1, 1)

• (-3, 0) (-1, 1)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which set of ordered pairs is a function?

• {(-10, 4), (-8, 3), (-8, 2), (-4, 1)}

• {(-2, 4), (0, 4), (2, 4), (2, 6)}

• {(1, 5), (1, 6), (2, 7), (3, 8)}

• {(-1, 1), (0, 0), (1, 1), (2, 2)}

Tags

CCSS.8.F.A.1

Does this graph represent a function?

• Yes

• No

The graph of a function is shown.

Which value is NOT in the range of the function?

• 0

• 3

• 4

• 5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Do the ordered pairs below represent a relation, a function, both a relation and a function, or neither a relation nor a function?

(-3, 5), (3, -7), (7, -15), (9, -19)

• function only

• neither a relation nor a function

• both a relation and a function

• relation only

Answer explanation

All functions are relations

But not all relations are functions

Tags

CCSS.8.F.A.1

Which equation describes the function?

• y = -2x + 12

• y = -2x + 24

• y = 2x + 12

• y = 2x + 24

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

A pizza restaurant charges for pizzas and adds a delivery fee. The cost (x), in dollars, to have any number of pizzas (p) delivered to a home is described by the function c = 8p + 3. Which statement is true?

• The cost of 8 pizzas is $11.

• The cost of 3 pizzas is $14.

• Each pizza costs $8 and the delivery fee is $3.

• Each pizza costs $3 and the delivery fee is $8.

Tags

CCSS.HSF.LE.B.5