I
input/output
name: saniyyan
lewis
_ date: 10-70
period: 3a
the keypad on sam's cell phone is shown at right. as you can see,
there is a relationship between the letters and numbers. when
sam writes a text message, he thinks of the letter in the
word he is typing and presses the correct numbered key.
x
1. complete this table to show the relation from letter to number
letter a b c d e f g h i j k l m n o p q r s tulvwlxyz
number 2 2 2 3 3 3 4 4 455 56664778/3/8/9/7
2. what is the domain of this relation?
3. what is the range of this relation?
i
t o number n function? explain using appropriate vocabulary

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

Solve the equation by completing the square. x^2+2x=17