Question

Graphing anyone help?

Answer 1

Part 1)

coordinates of point A (-5, -2)
coordinates of point B (4 , -1)

Distance formula = \[\sqrt{(x _{2} - x _{1})^{2} +(y _{2} - y _{1})^{2}}\]

So your distance between A and B would be

\[\sqrt{(-5 - 4)^{2} +(-2 + 1)^{2}}\]
=> \[\sqrt{(-9)^{2} +(-1)^{2}}\]
=> \[\sqrt{81 + 1}\]
=> \[\sqrt{82}\] or 9.05

Answer 2

so 9.05 would be the answer and it is already rounded to 2 decmial points?

Answer 3

need help with tht one too please

Answer 4

Part 2)

Part 1)

coordinates of point A ( -11, 4)
coordinates of point B ( -8 , 8)

Distance formula = \[\sqrt{(x _{2} - x _{1})^{2} +(y _{2} - y _{1})^{2}}\]

So AB is 5 units
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coordinates of point C ( 3, 2)
coordinates of point D ( 7 , -2)

Distance formula = \[\sqrt{(x _{2} - x _{1})^{2} +(y _{2} - y _{1})^{2}}\]

So CD is 10.7703

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Divide length of CD by length of AB
10.7703/5 = 2.15406
rounded to 2 decimal places, this is 2.15 times longer

Answer 5

so wait what are the answers for the first two graphs ?

Answer 6

In order to calculate midpoint,

\[Midpoint (x , y) = (x _{1} + x _{2})/2 , (y _{1} + y _{2})/2\]

Midpoint = (12+ -4)/2 , (-7 + 7)/2
midpoint = (4 , 0)

Answer 7

sorry there was a typo in the answer for part 2.

Part 1) 9.05
part 2) 2.15
part 3) 4 , 0

Answer 8

these too please

Answer 9

give me two mins please :)

Answer 10

ight

Answer 11

would 1png aswer be (4.5,2) ?

Answer 12

For 2.png, when you have to calculate the midpoint of TS,

Midpoint(x,y)=(x1+x2)/2,(y1+y2)/2


Midpoint = (-6+ 3)/2 , (-4 + 2)/2
midpoint = (-1.5 , -1)

Answer 13

sorry can't think about how to solve 1.png now. I know how to, can't remember :/