Y=9x+3 and x+9y=4 perpdencular or barrel

If we write a line in the form

Then the coefficient m is the slope of the line.

Two lines and are:

The first line is already in the required form: . We deduce that its slope is 9.

Let's rewrite the second line in the required form:

So, its slope is -1/9.

9 and -1/9 are obviously not equal, so the lines are not parallel.

But their product is -1, which means that the lines are perpendicular.

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720