Jordan has $55 she earns $67 by doing chores how many money does Jordan have now
2 answers:
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Answer:
Option B can be quadratic.
Step-by-step explanation:
Take a look at the data.
A quadratic equation is of the form ,
,
where, a,b,c are constants.
<em>To find an unknown equation of 3 variables,</em>
<em>we need 3 points lying on the equation.</em>
here they have given, 5 points, meaning all should lie on the curve.
<em>For first option,</em> inserting first 3 points to find equation, we get equation as,
, but the rest points don't satisfy the curve.
So first option is not quadratic.
Similarly, it can be shown that option C and D are also not quadratic.
While, in option B, it is clear that for every y, x is y squared,
, thus quadratic in nature.
Option a: add 3 to the previous term; 13, 16
Explanation:
The sequence is 1, 4, 7, 10, ....
We need to determine the next two terms of the sequence.
Hence to find the next two terms, first we shall find the common difference between every two terms.
Common difference between 1 and 4 =
Similarly, common difference between 4 and 7 =
Common difference between 7 and 10 =
Hence, the common difference is 3.
So, the next two terms will also have the same common difference 3.
To determine the next two terms, first we shall add 3 to the term 10, we get,
Similarly, adding 3 to the term 13, we get,
Thus, the sequence is 1, 4, 7, 10, 13, 16, .....
Thus, add 3 to the previous term; 13, 16
Hence, option a is the correct answer.