# math , correction

posted by jasmine20

theres a diagram which in the diagram the points are: (-3,1),(0,3),(2,0),
(-1,-2).

And the directions say:
use the concept of slope to determine if the given figure is a parallelogram or a rectangle:

so this is what i did please can someone check it to see if i am correct.

M[(-3,1) to(0,3)]=(3–1)/(0-(-3)) = 2/3
M[(-1,-2)to(2,0)]=(0–(-2))/(2–(-1))= 2/3
Opposite sides are parallel, so now we test the other sides. M[(-3,1) to (-1,-2)]=(-2-1)/(-1+3)=-3/2
M [(0,3) to (2,0)]=(0–3)/(2–0) = -3 /2
Opposite sides are parallel, so we have a parallelogram.
Rectangle?
M [(-3,1)to(-1,-2)]=(-2-1)/(-1-3)= -3/2
-M or the perpendicular to the slope is 2/3
All four corners are perpendicular (forming ninety degree angles). This parallelogram is a rectangle.

correct. Inverse negative slope means perpendicular.

Just a nitpick on the question: Rectangles are parallelograms, you can check the dictionary definition of parallelogram and you will see easily that a rectangle is a parallelogram.

## Similar Questions

1. ### math, question

IN graphing if i have two sets of parallel lines and the opposite sides are perpendicular then that means that it is not a parallelogram it is a rectangle diagram. sounds right...rectangle or a square thank you 14+d=6d 14+d=6d
2. ### Geometry

I really need some help please!!!!! Am I on the right tract?
3. ### geometry CA

Graph quadrilateral ABCD. Then determine the most precise name for each quadrilateral. 1. A (0, 5), B (–5, 0), C (0, –5), D (5, 0) (1 point) square kite rectangle 2. A (–4, 4), B (3, 4), C (5, 0), D (–2, 0) (1 point) square …
4. ### math CA

1. What are the next two terms in each sequence?
5. ### GeOmEtRy!!!

Determine whether a figure with the given vertices is a parallelogram. use the method indicated. P(-5,1) S(-2,2) F(-1,-3) T(2,-2); Slope Formula
6. ### geometry

Given: QRST is a parallelogram. Prove: QRST is a square. Complete the proof below by choosing the reason for line number 2 and line number 6. Reason Statement 1. QRST is a parallelogram. Given 2. QRST is a rectangle 3. is a right angle …
7. ### Physics

What are the strength and direction of the electric field at the position indicated by the dot in the diagram below, in which d = 4.9 cm, q = 11 nC, the positive x-axis points to the right, and the positive y-axis points up?
8. ### math

use the points in the diagram to name the figure?
9. ### math

use the points in the diagram to name the figure. <------C-----------D------>
10. ### math

Determine whether a figure with the given vertices is a parallelogram. Use the method indicated. A(3, − 9), B(10, 1), C(4, 10), D(−9, 3); Distance and Slope Formulas

More Similar Questions