The given equation is: 
To find the line perpendicular to it, we interchange coefficients and switch the signs of one coefficient.
The equation to a line perpendicular to it is:
$ 2y-x=c$
where, $c$ is some constant we have determine using the condition given.
It passes through $(2,-1)$
Put the point in our equation:
$2(-1)-(2)=c$
$c=-2-2$
$c=-4$
The final equation is:
$\boxed{ 2y-x=-4}$
Step-by-step explanation:
<h3><u>1. Find the permutation of the word LOVE taken 2 letters at a time.</u></h3>
<h2><u>ANSWER</u><u> </u><u>IS</u><u> </u><u>C.12</u></h2>
<h2>--------------------------------------------------------------------------------</h2>
<h3><u>2. If 3 girls enter a jeepney in which there are 7 vacant seats, how many ways are there for them to be seated?</u></h3>
<h2><u>ANSWER</u><u> </u><u>IS</u><u> </u><u>B.210</u></h2>
<h2>--------------------------------------------------------------------------------</h2>
<h3><u>3. How many combinations can be made from the letters of the word MOTHER taken 4 at a time.</u></h3>
<h2><u>ANSWER</u><u> </u><u>IS</u><u> </u><u>A.15</u></h2>
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<h3>→XxKim02xX</h3>
Systems of Linear Equations with Infinitely Many Solutions
Answer:
W = (P - 2L)/2 = (28- 2*8)/2 = 6
Where W is the width, P is the perimeter and L is the length of the garden.
Step-by-step explanation:
Since the equations are not given, i will try to come up with the similar equation than the ne that was the correct option in this exercise.
You can obtain the perimeter of a rectangle by summing the length of its four sides. Thus, the perimeter of the garden, lets call it P, is 2W + 2L, where W denotes the width and L the length. Since Nancy knows the perimeter, in order to calculate the width she can substract from it 2L (which is also known), and divide by 2 to obtain W, thus
W = (P - 2L)/2
If we reemplace P by 28 and L by 8, we obtain
W = (28-8*2)/2 = (28-16)/2 ) = 12/2 = 6.
