Quadratic Relations

Which of the following are exponential functions?

Select all the correct options.

$y=x^5$`y`=`x`5

A

$y=2x+5$`y`=2`x`+5

B

$y=2^x$`y`=2`x`

C

$y=x^e$`y`=`x``e`

D

$y=\left(\frac{3}{4}\right)^x$`y`=(34)`x`

E

$y=e^x$`y`=`e``x`

F

$y=x^5$`y`=`x`5

A

$y=2x+5$`y`=2`x`+5

B

$y=2^x$`y`=2`x`

C

$y=x^e$`y`=`x``e`

D

$y=\left(\frac{3}{4}\right)^x$`y`=(34)`x`

E

$y=e^x$`y`=`e``x`

F

Easy

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Compare, through investigation using technology, the features of the graph of y = x^2 and the graph of y = 2^x, and determine the meaning of a negative exponent and of zero as an exponent .