E2020 question and answer

Complete the table of values for the function
f(x) =
1
x
.

x f(x)
−1 a
−0.1 b
-0.01 c
−0.001 d
x f(x)
0.001 e
0.01 f
0.1 g
1 h

a =
⇒ -1

b =
⇒ -10

c =
⇒ -100

d =
⇒ -1000

e =
⇒ 1000

f =
⇒ 100

g =
⇒ 10

h =
⇒ 1

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step-by-step explanation:

i agree because i see the other persons thinking is clear

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36