2.15 Semi-Log Plots

Which of the following statements is true about semi log plots?

• Both axes are plotted on a linear scale.

• One axis is plotted on a linear scale while the other axis is plotted on a logarithmic scale.

• Both axes are plotted on a logarithmic scale.

• One axis is plotted on a logarithmic scale while the other axis is plotted on a linear scale.

Which axis has a logarithmic scale in a semi log plot?

• y-axis

• z-axis

• both axes

• x-axis

What does a straight line on a semi log plot indicate?

• Exponential relationship

• Linear relationship

• Logarithmic relationship

• No relationship

Logarithms and Exponentials are what?

• parallel
• perpendiular 
• inverses
• congurent

Logarithms are the inverse of ___________.

• Trees
• Quadratics
• Square
• Exponential

Drag the following points to their appropriate locations.

a

b

c

d

e

(2,20)

(3,150)

(1,300)

(4,100)

(0,5)

Drag the points to the correct locations.

a

b

c

d

e

(38,17)

(30,1)

(22,250)

(10,2000)

(46,5000)

The table gives selected values for the function g. Which of the following graphs could represent these data in a

semi-log plot, where the vertical axis is logarithmically scaled?

• 
• 
• 
• 

The coordinates of point A are most likely​ ​ (a)  

The coordinates of point B are most likely ​ ​ (b)  

The coordinates of point C are most likely ​ ​ (c)  

• (1, 300)
• (2, 50)
• (4, 15)
• (1, 320)
• (2, 14)
• (4, 66)
• (5, 100)

The function f is graphed on the semi-log plot above where the vertical axis has been logarithmically scaled. Which

of the following functions could be a model for f?