Find the equation of the line that is perpendicular to y = x+1
and contains the point (9,12).

y = -x + 21

Step-by-step explanation:

Equations that are perpendicular don't normally have the same slope as the original equation..

When you graph the given equation and the point, we can see that in order to make an equation that would cross through (9,12) and the line, we would need an equation with a negative slope.

**Using desmos (online graphing calculator)

If we continue to plug in numbers for our slope, we see that the equation

y = -x + 21  goes through point (9,12) and is perpendicular (intersecting or crossing through) line y = x + 1.

We can check our work by plugging in the coordinates of the point 9, 12 into our equations to see if they equal the same values..

y = -x + 21 --> 12 = -9 + 21 --> 12 = 21 - 9 --> 12 = 12 (correct)

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).