The y-intercept is -8 because when you put it in standard form you subtract 8x from both sides which give you-3y=-8x+24. Then you divide both sides by -3 which gives you y=8/3x-8. Since the form is y=mx+b, b is the y-intercept so it would be -8.
Answer:
,
,
,
, 
Step-by-step explanation:
First question:
He starts with 18, gains 2 every week, and needs 42. This means the equation is
.
Second question:
He starts with 2, gains 18 every week, and needs 42. This means the equation is
.
Third question:
It starts with 42, loses 2 every day, and needs 18. This means the equation is
.
Fourth question:
Each friend has a total bill of 18+x, there are 2 friends, and they need 42. This means the equation is
.
The only answer left is
, so that's the answer to the fifth problem.
Answer: y=4x
Step-by-step explanation:x y
0 0
1 4
2 8
3 12
From the above data:
we can say that y varies directly with x.
Direct variation states that if y is expressed as the product of some constant number k and x.
i.e y=kx
To represent the opposite of this number, if it is positive nineteen,
he would need to first take nineteen steps back to reach his original
position which in this case represents zero. He would then need to take
another nineteen steps backwards, to reach negative nineteen.
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