Acamera rental company charges a fixed amount plus a fee based on the number of days for which the camera is rented. the graph below shows the amount paid for a different number of days to rent the camera:
a graph titled camera rentals plots the number of days on the x axis and the amount in dollars on the y axis. a straight line joins the ordered pairs 0, 40 and 4, 120.
what is the fixed amount charged?
$20
$30
$40
$80

$40

Step-by-step explanation:

We are given two points (0, 40) and (4, 120).

Now to find the equation which represents A graph titled Camera Rentals plots the Number of Days on the x axis and the Amount in dollars on the y axis.

To Find equation we will use two point slope form.

Formula:

Substitute the values in the formula

The equation represents the situation :

where x is the number of days

y is the Amount in dollars

Now we are supposed to find the fixed amount charged.

So, we need to substitute x i.e. number of days=0

So,

Hence the fixed amount charged is $40.

x = 23.78

step-by-step explanation:

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x