The variables x
x
and y
y
vary directly. use the values to find the constant of proportionality, k
k
. then write an equation that relates x

x
and y
y
.

y=72; x=3

k=?
y=?

On a piece of paper graph f(x)=5•(0.4)^x

What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato