Question

The distance formula can be used to prove a quadrilateral has

a right angle

congruent angles

parallel sides

congruent sides

Answer 1

distance formula gives you distance between 2 points.

which means it gives you length of the side of a quadrilateral.

using distance formula, you can prove that 2 sides equal.

Answer 2

Thank you so much (; CAn you help me with a few more? @hartnn

Answer 3

sure :)

Answer 4

Line AB contains points A (3, −2) and B (1, 8). The slope of line AB is

−5

negative 1 over 5

1 over 5

5

Answer 5

@hartnn

Answer 6

The slope of the line through points (x1,y1) and (x2,y2) is given by :
\(\huge m=\frac{y_1-y_2}{x_1-x_2}\)
now,just put the values and find m.

Answer 7

here
x1 = 3
y1 =-2
x2= 1
y2 =8

Answer 8

@hartnn Is it B?

Answer 9

it has to be negative right

Answer 10

nopes,
what you got for numerator ?

y1-y2 = -2-8 = ... ?

Answer 11

-5 @hartnn

Answer 12

\(\Large \checkmark \)

Answer 13

@hartnn your the best (: !! I have quite a few more if you want to help me?

Answer 14

sure :)

Answer 15

Find the x value for point I such that DI and EI form a 3:5 ratio.

Segment DE is shown. D is at negative 3, 2. E is at 5, 5.

0

3

−1

1

Answer 16

@hartnn