math

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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)

  • Elena plz help -

    help me plz

  • math -

    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

  • math -

    4. d=sqrt[(2+6)² +(2+4)²]=10
    c. 10

    5. a. II

    6. a. (–8, –10)

  • math -

    Wat?

  • math -

    Elena are u sure they are right

  • ms sue or steve plz help -

    which one of them are right

  • math -

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

  • math -

    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

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