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The square footage and monthly rental of 10 similar two-bedroom apartments yield the linear regression equation [tex]y = 1.165x + 615.23[/tex], where [tex]x[/tex] represents the square footage of the apartment and [tex]y[/tex] represents the monthly rental price.

a. Use the equation to determine the monthly rent for an apartment that has 1,500 square feet.

b. Based upon the recommendation that you should spend no more than [tex]28\%[/tex] of your monthly gross income on housing, can Jacob afford this rental if he makes [tex]\$8,000[/tex] each month?

[ ] No

[ ] Yes

Answer :

We are given the linear regression equation

[tex]$$
y = 1.165x + 615.23,
$$[/tex]

where [tex]$x$[/tex] is the square footage and [tex]$y$[/tex] is the monthly rental price.

Step 1. Estimate the monthly rent.
For an apartment with 1,500 square feet, substitute [tex]$x = 1500$[/tex] into the equation:

[tex]$$
y = 1.165(1500) + 615.23.
$$[/tex]

Calculating the product:

[tex]$$
1.165 \times 1500 = 1747.5.
$$[/tex]

Then, add the intercept:

[tex]$$
1747.5 + 615.23 = 2362.73.
$$[/tex]

Thus, the monthly rent is \[tex]$2362.73.

Step 2. Determine the maximum housing expense for Jacob.
It is recommended that no more than $[/tex]28\%[tex]$ of the monthly gross income be spent on housing. Jacob's monthly income is \$[/tex]8,000, so:

[tex]$$
\text{Maximum housing expense} = 0.28 \times 8000 = 2240.
$$[/tex]

Step 3. Compare the rent with the maximum allowable expense.
Since

[tex]$$
2362.73 > 2240,
$$[/tex]

the monthly rent of \[tex]$2362.73 exceeds the maximum recommended housing expense of \$[/tex]2240.

Conclusion:
a. The monthly rent for an apartment with 1,500 square feet is \$2362.73.
b. Jacob cannot afford this rental because the rent is more than 28% of his monthly income.

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