Comparing Linear and Quadratic Functions

Put these functions in order from least to greatest based on their Y-INTERCEPT.

• B C A

• B A C

• C A B

• C B A

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Is the equation linear, exponential, or quadratic?
y = 2x+ 4

• Linear

• Exponential

• Quadratic

• None of the above

Which function is linear?

• f(x)

• h(x)

• g(x)

Which function best models the amount of money you earn when you get paid an hourly wage?

• Linear

• Quadratic

• Exponential

Does the equation y = x(x - 3) represent a linear function? Complete the table, then graph the function to show your work from the table.

Tags

CCSS.8.F.A.3

A student examines two graphs representing the functions f(x) = x + 5 and g(x) = x² + 5.  The student notices that the graphs both have a y-intercept at the point (0, 5).  The student makes the following claim:

“For any real number c, the y-intercepts for the graphs of y = c ∙ f(x) and y = c ∙ g(x) are the same.”

Is this true or false?

If it is TRUE, enter the y-coordinate of the y-intercept in terms of c. (0, ​ (a)   )

If its FALSE, enter the y-coordinates of the y-intercepts of  two graphs that are a counter-example. (0, ​ (b)   ) (0, ​ (c)   )

• 5

• ___

What type of function is f(x) = 2(x+4)²-7?

• exponential decay

• linear

• exponential growth

• quadratic

Which function best models the height and speed of throwing a ball in the air?

• Linear

• Quadratic

• Exponential

Do the points appear to represent a linear, exponential, or quadratic function?

• Linear

• Exponential

• Quadratic

Does the table of values represent a linear, exponential, or quadratic function?

• Linear

• Exponential

• Quadratic