Evaluating Functions from a Graph or Equation

Evaluating Functions from a Graph or Equation

Assessment

Flashcard

Mathematics

8th Grade

Hard

CCSS
HSF.IF.A.2, 8.F.A.1, 8.F.B.4

+3

Standards-aligned

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a function?

Back

A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.

Tags

CCSS.8.F.A.1

2.

FLASHCARD QUESTION

Front

What does it mean to evaluate a function?

Back

To evaluate a function means to find the output value for a given input by substituting the input into the function's equation.

Tags

CCSS.HSF.IF.A.2

3.

FLASHCARD QUESTION

Front

How do you find the value of w(x) = 3x - 7 when w(x) = 14?

Back

Set 3x - 7 = 14, solve for x: 3x = 21, x = 7.

Tags

CCSS.HSF.IF.A.2

4.

FLASHCARD QUESTION

Front

What is f(9) if f(x) = x - 5?

Back

f(9) = 9 - 5 = 4.

Tags

CCSS.HSF.IF.A.2

5.

FLASHCARD QUESTION

Front

Using a graph, how do you find f(8)?

Back

Locate x = 8 on the graph and read the corresponding y-value.

Tags

CCSS.HSF.IF.A.2

6.

FLASHCARD QUESTION

Front

What is the output of f(-2) if f(x) = x^2 - 4?

Back

f(-2) = (-2)^2 - 4 = 0.

Tags

CCSS.HSF.IF.A.2

7.

FLASHCARD QUESTION

Front

How do you evaluate f(2) if f(x) = 2x + 4?

Back

f(2) = 2(2) + 4 = 8.

Tags

CCSS.HSF.IF.A.2

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