If JK is formed by J(-7,-8) and K(1,4) determine if L(-9,5) lies on the perpendicular bisector. 1. What elements do you need to show to confirm that point L is in the perpendicular bisector of JK
2. find the elements you described in 1
3. verify if point L is on the perpendicular bisector of JK. Justify your conclusion

Part A: determine if point L is on the perpendicular bisector of jk you would need to see, if and only if L intersects at the middle of the triangle.

Part B: point L (-9,5) is in the middle of points J and K

Part C: Point L is then perpendicular bisector due to the fact that it is in the middle of JK

Step-by-step explanation:

Part A: determine if point L is on the perpendicular bisector of jk you would need to see, if and only if L intersects at the middle of the triangle.

Part B: point L (-9,5) is in the middle of points J and K

Part C: Point L is then perpendicular bisector due to the fact that it is in the middle of JK

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1