Exponential and Logarithmic Functions: Part One — Test

Question 1

If s times x is equal to 2 minus x squared and t times x is equal to 3 x , which value is equivalent to open paren s circ t close paren times negative 7 ?

Revolt · Accepted Answer

negative 439

Question 2

Which function has an inverse that is also a function?

Revolt · Accepted Answer

start set open paren negative 1 comma 3 close paren comma open paren 0 comma 4 close paren comma open paren 1 comma 14 close paren comma open paren 5 comma 6 close paren comma open paren 7 comma 2 close paren end set

Question 3

If h of x is equal to x minus 7 and g of x is equal to x squared , which expression is equivalent to open paren g circ h close paren times 5 ?

Revolt · Accepted Answer

open paren 5 minus 7 close paren squared

Question 4

If f of x is equal to x plus 7 and g of x is equal to the fraction with numerator 1 and denominator x minus 13 , what is the domain of open paren f circ g close paren times x ?

Revolt · Accepted Answer

start set x such that x is not equal to 13 end set

Question 5

Which of the following is an even function?

Revolt · Accepted Answer

g of x is equal to 2 x squared plus 1

Exponential and Logarithmic Functions: Part One — Test Answers

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