Functions and Relations

What is the definition of a function?

• A function is a variable that stores a value.

• A function is a block of code that performs a specific task and can be reused throughout a program.

• A function is a loop that repeats a specific task.

• A function is a comment that explains the code.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the vertical line test used for?

• The vertical line test is used to determine if a graph represents a function.

• The vertical line test is used to determine if a graph represents a circle.

• The vertical line test is used to determine if a graph represents a quadratic equation.

• The vertical line test is used to determine if a graph represents a linear equation.

What is the difference between a continuous function and a discreet function?

How do you find the x-intercept of a function?

• Set x = 0 and solve for y

• Set y = 1 and solve for x

• Set y = x and solve for x

• Set y = 0 and solve for x

How do you find the y-intercept of a function?

What are the intervals of a function where it is positive?

• The intervals where the function is positive can be determined by solving the inequality f(x) > 0.

• The intervals where the function is positive can be determined by solving the inequality f(x) ≥ 0.

• The intervals where the function is positive can be determined by solving the inequality f(x) = 0.

• The intervals where the function is positive can be determined by solving the inequality f(x) < 0.

What are the intervals of a function where it is negative?

• The intervals where the function is negative can be determined by taking the derivative of the function.

• The intervals where the function is negative can be determined by solving the inequality f(x) < 0.

• The intervals where the function is negative can be determined by solving the inequality f(x) > 0.

• The intervals where the function is negative can be determined by finding the x-intercepts.

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Is the relation {(1, 2), (2, 3), (3, 4), (2, 5)} a function?

Tags

CCSS.8.F.A.1

Is the relation {(1, 2), (2, 3), (3, 4), (4, 5)} a function?

Tags

CCSS.8.F.A.1

Is the relation {(1, 2), (2, 3), (3, 4), (4, 5), (5, 6)} a function?

Tags

CCSS.8.F.A.1