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September 18, 2014

September 18, 2014

Posted by **j** on Wednesday, October 3, 2012 at 6:36pm.

a. square root of 52

b. square root of 28

c. 10

d. square root of 20

5. In which quadrant is the point (x, y) located if x is negative and y is positive?

a. II

b. III

c. IV

d. I

6. Point A(8, –10) is reflected over the y-axis. Write the coordinates of A'.

a. (–8, –10)

b. (8, 10)

c. (8, –10)

d. (–8, 10)

- Elena plz help -
**j**, Wednesday, October 3, 2012 at 6:38pmhelp me plz

- math -
**j**, Wednesday, October 3, 2012 at 6:45pmplz help

- math -
**Jennifer**, Wednesday, October 3, 2012 at 6:46pm4. The distance is ((y2-y1)^2 + x2-x1)^2)^.5

plugging the numbers in:

((-6-2)^2 + (4 +2)^2)^.5 =

square root of (64 + 36)

a. square root of 52

Just type in 52 ^ 0.5 into your calculator

imagine your axes are centered on a clock. The first quadrant (quarter on a clock) is x positive, y positive

2nd quadrant x positive, y negative

3rd quadrant x negative, y negative

4th quadrant x negative, y positive

6. When a point is reflected over the y-axis, the value of the x coordinate is multiplied by a negative 1, and the value of the the y coordinate stays the same

- math -
**Elena**, Wednesday, October 3, 2012 at 6:48pm4. d=sqrt[(2+6)² +(2+4)²]=10

c. 10

5. a. II

6. a. (–8, –10)

- math -
**Anonymous**, Wednesday, October 3, 2012 at 6:49pmWat?

- math -
**Anonymous**, Wednesday, October 3, 2012 at 6:50pmElena are u sure they are right

- ms sue or steve plz help -
**Anonymous**, Wednesday, October 3, 2012 at 6:55pmwhich one of them are right

- math -
**Ms. Sue**, Wednesday, October 3, 2012 at 7:16pmSorry -- but my math skills don't extend this far.

- math -
**Reiny**, Wednesday, October 3, 2012 at 8:00pm4. Don't know how Jennifer got 64+36 = 52

used to be 100 when I went to school

4. c

5. a

6. a

Elena is right, her answers agree with mine

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