Keiko surveyed people with cell phones. Ages in years = a Texts they send per day = t He drew a best-fit line and determined its
equation. Evaluate how many texts a 15 year old would send each day according to Keiko's trend line.
1 answer:
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Answer:
B is correct.
Step-by-step explanation:
Quadratic Expression (Standard Form) is:
To say it simply, the expression must have 2 as the highest degree.
This means that if there are any higher or lower degrees than 2 then they are not quadratic expression.
A choice is not quadratic expression because it has 1 as the highest degree.
B choice is correct because 2 is the highest degree.
C choice is wrong because 3 is the highest degree.
D choice is wrong because it is not a polynomial.
Therefore, B is correct.