The (average) sales price for single family property in Seattle and Port Townsend is tabulated below.

Year Seattle Port Townsend

1970 $38,000 $8,400

1990 $175,000 $168,400

Find a linear model relating the year x and the sales price y for a single family property in Seattle.

Step-by-step explanation:

To find the linear model, we need to find a linear equation, where its slope is defined as

So, we use the given points (1970, 38000) and (1990, 175000), to find the slope

Now, we use the point-slope formula to find the equation

Therefore, the linear model is

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.