Consider the line 5x+8y=-7.
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?

Step-by-step explanation:

The equation of the given line is expressed as

5x + 8y = - 7

We would rearrange the given equation so that it will take the slope intercept form which is expressed as

y = mx + c

Where

m represents the slope

c represents the y intercept.

Rearranging the equation, it becomes

8y = - 5x - 7

Dividing both sides of the equation by 8, it becomes

y = - 5x/8 - 7/8

The slope of the given line is - 5/8

If two lines are parallel, it means that they have the same slope. Therefore,

The slope of a line parallel to the given line is - 5/8

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.

each side has a different length.  

step-by-step explanation: