Easy Algebra Step-by-Step

Answer Key 231

10

y

K

x

9 8 7 6 5 4 3 2 1

–10–9–8–7–6–5–4–3–2–1 1 2 3 4 5 6 7 8

(0, 0)

–1^910

–2

–3

–4

–5

–6

–7

–8

–9

–10

0

The point K is 6 units to the left of the y-axis and 5 units below the x-axis, so

(−6, −5) is the ordered pair corresponding to point K.

16. d= ()−^22 +()()−

d=+ 16 92 = 55 =

17. d= ()+^22 +()()− −

d=+ 36 36 = (^2) ()( )= 6 2

18. Midpoint =
    ⎛−
    ⎝⎜

⎛⎛

⎝⎝

⎞

⎠⎟

⎞⎞

⎠⎠=()

24 +

2

51 −

2

, ⎠⎠⎠ (

2

19. m=
    −

=

−

51 + =−

24 −

6

6

1