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Finger [1]
3 years ago
14

Helppppppp meeeeee plz

Mathematics
1 answer:
Mkey [24]3 years ago
7 0
A and C are true ......
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State the rule obeyed by the variables in each relation diagram below
labwork [276]

Answer:

y = 2x + 1

Step-by-step explanation:

You can see a pattern in the group of x's that the numbers go up by 1 Also in the y-set that the numbers go up by 2. So this pattern is linear, that means the "rule" you are looking for does not have exponents or square roots or any very complicated stuff. You can use a guess and check method. Say to yourself how can I get a 7 out, when I put a 3 in? "times by2 and plus 1" works.

3 times 2, and plus1

gives you 7.

Test it on the other numbers.

-1 times2, and plus1

2(-1)+1 = -1

2(0)+1 = 1

2(1)+1 = 3

2(2)+1 = 5

It works for all the numbers.

You can calculate it also, using any two pairs of (x,y) from the data set. Put y-y on top of a fraction and x-x on the bottom. You will get the slope and that is the 2 in the "rule"

(3,7) and (2,5) for example. 7-5 so put 2 on top and 3-2 so put 1 on the bottom. 2/1 is just 2. From the point (0,1) we know the y-intercept is 1. This also gives the equation y=2x+1.

If you are just starting to learn this, probably just guess and check a rule. The rule has to work for all the points.

6 0
2 years ago
Hi I am in desperate need of a "tutor" If anyone is decent at Algebra II, any little help is welcomed! Please respond to this an
Llana [10]

Answer:

Step-by-step explanation:

Hi,

I am quite good at maths and will be happy to help you, not just in Algebra, but any other topics in maths

6 0
3 years ago
Can somebody please answer number 16
lawyer [7]

x=9 should be the answer

7 0
3 years ago
Reflect the figure over the line x = 0.
lara [203]

Answer:

i just did it and got  j' 2,1 and k' 0,3

3 0
3 years ago
Please help please help me out
Lapatulllka [165]
Actually it’s 42 cuz they are equal
3 0
3 years ago
Read 2 more answers
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