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)
8 answers
help me plz
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
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
4. d=sqrt[(2+6)² +(2+4)²]=10
c. 10
5. a. II
6. a. (–8, –10)
c. 10
5. a. II
6. a. (–8, –10)
Wat?
Elena are u sure they are right
which one of them are right
Sorry -- but my math skills don't extend this far.
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
used to be 100 when I went to school
4. c
5. a
6. a
Elena is right, her answers agree with mine