Can someone check my answers? The amount of money in Alexander’s account is, = 4000 − 70, where is the amount in dollars and is the time in weeks.

a) Which variable is independent and which is dependent?

Dependent is -70x and independent is 4000

b) In which week will there be $1701 in the account?



y=4000-70(x)

1701=4000-70(x)

-70x=1701-4000

-70x= -2299

x=-2299/-70

x=2299/70

x=32.843

x=33

c) How much will the amount in Alexander’s account change if the time increases by 15 weeks?



y=4000-70(x)

y=4000-70(15)

y=2950

yes you are correct

Step-by-step explanation:

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.