A. No it is not linear because there are points that have the same y
b. yes it is linear because the x is consistently going up by 1 and y is consistently going down by 3
This is a problem of
Arithmetic that is a branch of mathematics that consists of the study of numbers. Its main goal is the study of the traditional operations on them just as: <em>addition, subtraction, multiplication and</em><span><em> division</em>. </span>There is an order of operation to solve problems in arithmetic that is the way you choose to simplify expressions. This order is like this:
1. First. Solve Parentheses.
2. Second. Solve Exponents (and root).
3. Third. Solve Multiplication and Division
3. Fourth. Solve addition and subtraction.
So let's apply these concepts to our problem:

We don't have parentheses, so let's apply
second step:

Applying
third step:

Finally, applying
fourth step, the result is:
3. The original price of the trampoline is $72
The marked off price is 72 times 70 percent.
72 x .70 = 50.4
The sales tax is 5%
50.4 + 50.4 x 0.05
50.4 + 2.52
52.92
He paid $52.92 in total.
4. A store bought a leaf blower for $48.50 and marked it up 100%
This cost would be 48.5 x 2 which is $97
The sales tax is 6%
97 + 97 x 0.06
97 + 5.82
102.82
The total cost was $102.82
Answer:
They show as intersections with the x-axis
Step-by-step explanation:
For example, the quadratic y = x² - 1 has roots x = -1 and x = 1.
They show on the graph as intersections of the parabola with the x axis at x = -1 and x = 1.