Answer:
Step-by-step explanation:
(1) A typical form of equation of a line is:
with, is slope and is y-intercept.
(2) Another straight line has equation in form of:
with is slope and is y-intercept
(3) If these two lines are perpendicular, according to the property of two perpendicular lines on the two-dimensional plane, we have:
x = -1
(4) Transform the given equation of original line into typical form:
<=>
<=>
<=>
=>
=>
=> Option D: is correct (Slope = )
Hope this helps!
:)
Answer:
x =1 x = -7
Step-by-step explanation:
|4x + 12| = 16
Absolute value equations have two solutions, one positive and one negative
4x+12 = 16 4x+12 = -16
Subtract 12 from each side
4x+12-12 = 16-12 4x+12-12 = -16-12
4x =4 4x =-28
Divide by 4
4x/4 = 4/4 4x/4 = -28/4
x =1 x = -7
The given equations are;
2x-y=8......(i)
3x+y=17......(ii)
Adding equation (i) and (ii), we get
5x=25 ( as +y and -y is canceled out during addition)
Hence x=5
Now
Substituting the value of x in equation (i)
2x5-y=8
10-y=8
Hence y=2
Answer:
$26.04
Step-by-step explanation:
I did this course already
It's scalene because all three sides are different