Answer:
1.875
Step-by-step explanation:
the average rate of change of g(x) in the closed interval [ a, b ] is

here [a, b ] = [- 1, 3 ] , then
g(b) = g(3) = 2³ + 1 = 8 + 1 = 9
g(a) = g(- 1) =
+ 1 =
+ 1 = 1.5
then
average rate of change =
=
= 1.875
$3/6 = .50 per orange
$2.40/3 = .80 per grapefruit
10(.50) + 11(.80) =
$5.00 + $8.80 = $13.80
Option 2:
is the right answer
Step-by-step explanation:
We have to convert the details given in Plan one to an equation
Let x be the number of visits to the gym
and y be the total cost for plan one
So,
As each visit costs $3, x number of visits will cost 3x
One time fee is $50
So the equation can be written as:

Hence
Option 2:
is the right answer
Keywords: Slope equations of lines
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