The slope of the first line is

.
To be perpendicular the slope of the second line must be the negative reciprocal of the first:

Use the slope-intercept formula:

Substitute known values:

Solve for

:

Complete the formula:
Set the equation inside the absolute value brackets equal to 12 and -12, so you will end up with two answers.
7x+2=12 gives you 10/7
7x+2=-12 gives you -2.
So your answers are 10/7 and -2
Answer:
X = ±5
Step-by-step explanation:
X^2 - 9 = 16
Add 9 to each side
X^2 - 9+9 = 16+9
X^2 = 25
Take the square root of each side
sqrt(X^2 ) =±sqrt(25)
X = ±5
<span>(9,9) (12,15)
Find the slope by using the slope formula.
m = y2 - y1 / x2 - x1
m = 15 - 9/12 - 9
m = 6/ 3
m = 2
The slope = 2</span>
Answer:
yes
Step-by-step explanation:
Area is 1.2 base * height
the base is 10 and the height is 12
120/2= 60