<em>Answer:</em>
Yes, this is a function.
No, this is not a linear function.
<em>Step-by-step explanation:</em>
A function is a process or a relation that associates each element x of a set X, the domain of the function, to a single element y of another set Y
Linear functions are those whose graph is a straight line. A linear function has the following form. y = f(x) = a + bx. A linear function has one independent variable and one dependent variable.
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Answer:

All real numbers less than or equal to 3
Step-by-step explanation:
we have

Solve for y
Subtract 2y both sides


The solution is the interval ------> (-∞,3]
All real numbers less than or equal to 3
In a number line the solution is the shaded area down of y=3 (close circle)
see the attached figure
Answer:
91 degrees
Step-by-step explanation:
83 - (-8)
83 + 8
Answer:

Step-by-step explanation:
First, multiply the 3 and the 7 together, and then "multiply" the exponents -8 and 3. (However, when "multiplying exponents, you're really just adding them together: -8 + 5)
(
)^2
Then, multiply the -5 and -2 together, giving you:
