I really need help on this one! Giving brainliest, Need two answers!

Step-by-step explanation:

From the graph we notice that the minimum of the function 1 is -1

From the table we notice that the minimum of the second function is 2

so the function #2 has a greater minimum

The function is x²+3x-4

Derivate it and solve the equation y'=0

y'= 2x+3

y'=0

2x+3=0

2x= -3

x = -3/2

Derivate it again:

y"= 2> 0⇒ so the function reaches the minimum at -3/2

the image of -3/2 is :

y= (-3/2)²+3*(-3/2)-4 = -6.25

so the answer is

#3<#1<#2

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

answer is b

step-by-step explanation: