My town has two cell phone providers. The provider DontTalkMuch charges $80 per month, plus 1 dollar per hour. The provider TalkLots charges $20 per month, plus 4 dollars per hour. How much do you have to use your phone in a month in order for DontTalkMuch’s deal to be better for you?

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

choose (5, 1.5) and (-1.5,-3.5)

step-by-step explanation:

5 - 1.5 =3.5

-1.5 - (-3.5) = 2

3.5 + 2 =5.5

hope this !

146

step-by-step explanation:

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)