Chelsea is graphing the function f(x) = 20(1/4)^x. she begins by plotting the initial value. which graph represents her first step?

C

Step-by-step explanation:

Point    (0,20)

Good luck

Refer the attached figure.

Step-by-step explanation:

Given : Chelsea is graphing the function .

She begins by plotting the initial value.

To find : Which graph represents her first step?

Solution : We have given the exponential function.

The form of exponential function is

Where,

a is the initial value

b is the base

x is the exponent

On comparing the given function with exponential function we get, a=20 the initial value.

or

The initial value is the value of the function when the value of x is equal to zero.

So, In the given function put x=0

The initial value is the point (0,20)

Now, we plot the graph which is the required result and represents her first step.

Refer the attached figure below.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

the answer is 489

step-by-step explanation: