The graph of the function f(x) = (x – 4)(x + 1) is shown below.
у
6-
4+
Which statement about the function is true?
The function is increasing for all real values of x
where
x<0.
The function is increasing for all real values of x
where
x < -1 and where x > 4.
The function is decreasing for all real values of x
where
-1 The function is decreasing for all real values of x
where
x < 1.5.
2-
6 4 12
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6

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

the bolded word " farsighted" could be replaced with visionary.

delaney would like to make a 5lb nut mixture that is 60% peanuts and 40% almonds.

she has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds.

let 'p' represent the number of pounds of peanuts needed to make the new mixture, and  

let 'm' represent the number of pounds of the 80% almond-20% peanut mixture.

:

p + m = 5

therefore

m = (5-p)

write an equation based on the percent of peanuts

1p + .2m = .6(5)

replace m with (5-p)

p + .2(5-p) = .6(5)

p + 1 - .2p = 3

p - .2p = 3 - 1

.8p = 2

p = 2/.8

p = 2.5 lbs of peanuts required

then

5 - 2.5 = 2.5 lbs of the peanut/almond mixture required

:

a) what is the system that models this situation?

p + m = 5

1p + .2m = .6(5)

●yes, this statement is absolutely apt.

hope this you