Recognizing Exponential Equations

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

• 2

• 4

• (2)^x

• 8

Tags

CCSS.HSF-LE.A.1A

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

Which of the following is an increasing exponential function whose y-intercept is 50?

• y = 50(.05)^x

• y = 50x - 4

• y = (2)^x + 50

• y = 50(1.4)^x

Tags

CCSS.HSF.LE.A.2

Solve for x:
(-3)^x = (-3)¹³

• 13

• -3

• x + 13

• x -13

Solve for a:
5^{a + 2} = 1/125

• -1

• -6/7

• -5

• 4

Solve: 9^8-x = 27^x-3

• x = 5

• x = -5

• x = 1/5

• x = -1/5

Solve: 7^-x = 49

• x = 1

• x = -1

• x = 2

• x = -2

Solve: 2^x = 4^x+1

• x = -2

• x = 2

• x = -3

• x = 3

Solve 3³ = 3^{4x + 2}

• x = ¼

• x = -¼

• x = ½

• x = -½

To solve 8 = 2^5x+7, you would need to re-write 8 as what base?

• 8

• 4

• 2

• Cannot be determined