Identify Parts of Exponential Functions

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

• (.27)^x
• .27
• 13
• 3.51

Tags

CCSS.HSF.LE.B.5

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

• 2

• 4

• (2)^x

• 8

Tags

CCSS.HSF-IF.C.7E

In an exponential function, what does the 'b' represent?

• SLOPE

• COMMON RATIO

• Y-INTERCEPT

Tags

CCSS.HSF.LE.B.5

Identify the common ratio (multiplier) of the function f(x)=2(4)^x.

• 2

• 4

• (2)^x

• 8

In the equation y = 205(0.25)⁴, what is the y - intercept (starting amount)?

• 0.25

• 4

• 0.75

• 205

Tags

CCSS.HSF.LE.B.5

Which equation matches the graph?

• y = 2^x+3

• y = 2^x + 3

• y = 2^x

• y = 2^-x

Tags

CCSS.HSF.LE.A.2

Write an equation that models the following situation: Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x

• y=0.14(1 + 6)^x

• y=6(1 + 0.14)^x

• y=6(1 - 0.14)^x

Tags

CCSS.HSF.LE.A.2

What is the initial value for the function: f(x) = 300(1 + 0.16)^x?

• 300

• 1.16

• .16

• x

What is the initial value for the function: f(x) = 800(0.85)^x?

• 800

• 0.85

• 0.15

• x

Tags

CCSS.HSF.LE.B.5

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x

• y = 15(1 + 0.35)^x

• y = 15(0.35)^x

• y = 35(1 - 0.35)^x

Tags

CCSS.HSF.LE.A.2