Answer:
f(x)could also be written as y in y= mx+ c
by taking two points we are gonna calculate.
(0,1), (4,-1)
finding m
y*- y'/x*-x'
=1-(-1)/0-4
=2/-4
=-2
now c ( intercept)
take any point
eg. (0,1)
y=mx+c
1=-2×0+c
1=c
equation then equals to
y=-2x+1
f (x) =-2x+1
Answer : 11kg
9 divided by 45 = 0.2 then 0.2 x 55 (which is the other part of the percentage) is 11

The given ratio is 5:8, Write it as fraction then multiply the numerator and denominator with same number to get the fractions or ratios equivalent to the given one.

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<u>First</u><u> </u><u>equivalent</u><u> </u><u>ratio</u><u> </u><u>is</u><u> </u><u>10</u><u>:</u><u>16</u>


<u>Second</u><u> </u><u>equivalent</u><u> </u><u>ratio</u><u> </u><u>is</u><u> </u><u>20</u><u>:</u><u>32</u>


<u>Third</u><u> </u><u>equivalent</u><u> </u><u>ratio</u><u> </u><u>is</u><u> </u><u>25</u><u>:</u><u>40</u><u>.</u>
Remember, h(x) = y and x ...well, x is x...lol
B. h(x) = |x|....subbing in (-1,1)
y = |x|
1 = |-1|...absolute values are positive, even when they say negative
1 = 1 (correct)