Question

4. Point E is located at (–2, 2) and point F is located at (4, –6). What is the distance between points E and F?

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)

Answer 1

help me plz

Answer 2

4. 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

Answer 3

4. d=sqrt[(2+6)² +(2+4)²]=10
c. 10

5. a. II

6. a. (–8, –10)

Answer 4

Wat?

Answer 5

Elena are u sure they are right

Answer 6

which one of them are right

Answer 7

Sorry -- but my math skills don't extend this far.

Answer 8

4. 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