Help!! I am trying to figure some of my son's math problems!!!?

Question

He has to find the "rule" the following table
0 1
1 5
2 9
3 13
4 17
5 21

For example, his previous one was
10 3
14 7
17 10
20 13
23 16
and the rule was -7

another example:
1 3
2 6
3 9
4 12
5 15
6 18
7 21
8 24
and the rule was x 6 / 2

Answer 1

F(x) = 4(x) + 1
F(0) = 1
F(1) = 5
F(2) = 9.....etc.

Answer 2

x 4 + 1

Answer 3

He has to find the "rule" the following table
0 1 +4=5
1 5 +4=9
2 9 +4=13
3 13 +4=17
4 17 +4=21
5 21

+1 +4

Answer 4

In the table,
0 1
1 5
2 9
3 13
4 17
5 21
notice that every time x goes up by 1, y goes up by 4, so the equation is almost
y = 4x
but
4(0) = 0, not 1, so we add 1 to the rule:
y = 4x + 1.

Answer 5

+4

Answer 6

0 x 4 +1=1
1 x 4+1 =5
2 x 4 + 1=9

etc.

Answer 7

0 1
1 5
2 9
3 13
4 17
5 21

rule is multiply by 4 then add 1

Answer 8

The Rule would be times 4 plus 1
(x 4 +1)

Answer 9

OK

0 1 (4x0 +1)
1 5 (4x1 +1)
2 9 (4x2 +1)
3 13 (4x3 +1)
4 17 (4x4 +1)
5 21 (4x5 +1)

So the rule is the number (x) times4 +1

So 6 would be 4x6 +1 = 25
6 25
7 29
8 33
9 37


Hope that helps.

Answer 10

well for the first one, you see a comon difference between the y's, the 2nd row. the difference remains 4 therefore m=4. m is trhe slope u find the slope by first subtracting 2 ys(y1 and y2) and divide this by the difference between x1 and x2. now that u no y=4x+b, u need to find b, so input a value pair for x and y. for example, 0 and 1. so 1=0(4)+b,b=1. so the generakl rule is y=4x+1. using the same metrhod to solve the others, u find out:
for the 2nd one, y=x-7, and the last one is y=3x. remember, y=mx+b is useful for any equation that has a constant difference between ys.

Answer 11

wow, parents cant even do students work anymore? then why do they make it so hard?!? ah well, to be honest im only in grade 9 so, either that is one hard school, or its a higher grade than me. :)


actually, i dont even know what a "rule" is, in math terms

wait a second, why arent my parents doing my work?!?
my Dad makes me look like an idiot when i bring my math to him, escpecially that time i screwed the whole equation because i forgot to make a number negative =/

i think the student should do the work, pehaps with help, but he should be there.


sorry if i am one of those people that seem to type a lot without being any help. to be honest i am hesitating as to whether or not i should even post this.

Have a LoVeLy day :D