<u>Given</u>:
The given function
which models the value of Mark’s car, where x represents the number of years since he purchased the car.
We need to determine the approximate value of Mark's car after 7 years.
<u>Value of the car:</u>
The value of the car after 7 years can be determined by substituting x = 7 in the function
, we get;



Rounding off to the nearest dollar, we get;

Thus, the approximate value of Mark's car after 7 years is $14278.
Hence, Option a is the correct answer.
You would make two mountains because you need to compare the two factor mountains
Question:
Three students were working on 630,000÷700 in math class.
a. Desiree finds the quotient is 9,000 and Micah finds the quotient is 900.
Determine which student found the correct quotient.
b. Delilah finds her answer is 90, but she copied the expression incorrectly from the board. If her reasoning and answer for the expression she copied are correct, what expression might she have written?
Answer:
a. Micah is correct
b.


Step-by-step explanation:
Given



Solving (a): Who is correct?
To do this, we first calculate the quotient of the expression.

Divide 630000 by 700

Hence:
Micah is correct
Solving (b): What Delilah must have copied?
We have:

There are no options to pick from. So, we just need to work out expressions that equals 0.
Possible expressions are:


Point-slope formula;
y - y1 = m(x - x1) given point(-1, 4) and slope(m) is 4.
y - 4 = 4(x - (-1)
y - 4 = 4x + 4
y = 4x + 4 + 4
y = 4x + 8 << the equation.
hope this helped, God bless!