# Geometry

posted by .

Can someone help me with this? I don't understand how to do the y=-14 part my teacher didn't explain it to us today.

• Geometry -

I assume you can do the reflection about the x-axis
(any point on the x-axis would stay, all points keep their x's, and their y's become opposite.
e.g. A(6,8) ---> A1(6,-8)
repeat for the other points and graph the new figure, then shade as instructed.

y = -14 is simply a horizontal line 14 units below the x-axis (two points on it would be (5,-14) and (-5,-14) , join them)

Now you are reflecting all points around that line

the x's would stay the same, but for the y, calculate how far above -14 it is, then move down just as far below the -14

e.g. B(12,4) is 18 units above the line y = -14

(how did I get 18 ??)

so it moves 18 units below that line, as a result:
B(12,4) ---> B2(12,-32)

you can check your new points are correct by taking the average of your y values of the old point and the new point, you should get -14
(-32 + 4)/2 = -14

give it a try, I suggest you print out my instructions.

## Similar Questions

1. ### Math

Suppose that a given quadrilateral is a kite with no right angles. Which of the following is possible?
2. ### Geometry

Suppose that a given quadrilateral is a kite with no right angles. Which of the following is possible?
3. ### Math

suppose that a given quadrilateral is a kite with no right angles. which of the following is possible A: the quadrilateral is a rhombus B: the quadrilateral has congruent diagnols C: the quadrilateral is a trapezoid D: None
4. ### Geometry

The coordinates of the vertices of quadrilateral ABCD are A (-8, 8), B (-4, 8), C (-4, 4), D (-8, 4). The coordinates of the vertices of quadrilateral PQRS are P (-10, 10), Q (-2, 10), R (-2, 2), S (-10, 2). Which statement is correct?
5. ### Geometry

The coordinates of the vertices of a quadrilateral are R(-1,3) S(3,3) T(5,-1), and U(-2,-1).Find the perimeter of the quadrilateral. Round to the nearest tenth.
6. ### Geometry

Determine whether the polygons with the given vertices are similar. Quadrilateral ABCD with vertices A(–3, 3), B(0, 3), C(0, 1), D(–3, 1) and quadrilateral EFGH with vertices E(2, –8), F(8, –8), G(8, –12), H(2, –12)
7. ### Geometry

quadrilateral A B C D on a graph. Point A is at ( -5, -1), Point B is at ( 6, 1), Point C is at (4, -3), Point D is at (-7, -5). Prove the quadrilateral is a parallelogram by using Theorem 5-8; if one pair of opposite sides of a quadrilateral …
8. ### Geometry

Graph the following quadrilateral: A(-2,-3) B(-1,1) C(4,-1) D(3,-5) Graph quadrilateral ABCD after a translation which moves point D to the origin. Label the new quadrilateral A' B' C' D'.
9. ### math

The coordinates of the vertices of a quadrilateral are given below . (2, 3) (8, 3) (8, 11) (11, 7) What is the area, in square units, of the quadrilateral?
10. ### Geometry

Quadrilateral ABCD is a parallelogram. If adjacent angles are congruent, which statement must be true?

More Similar Questions