Which situation results in a change that could be modeled by a negative number? O a change in elevation from 492 feet to 783 feet
a change in elevation from -12 feet to 123 feet
a change in elevation from sea level to 87 feet
O a change in elevation from 632 feet to 312 feet

Answer is B

A change in elevation from -12 to 123

Step-by-step explanation:

I really don't know this is my best guess and it is the only one with a negative number. I"m taking the quiz on Edge so I will let you know if I get it right!

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!