1: x - (-3) is the same as x + (-3).

true
false

2: a negative times a negative equals a positive.

true
false

3: evaluate -6^2 - 28 ÷ 4 + (-9).

52
-52
20
-20

4: solve -2x + 6 = -20.

-13
13
-7
7

5: solve x - (-9) = -14.

-23
23
-5
5: "three times a number increased by eleven is seventeen" translates to which of the following equations?

11x + 3 = 17
11x - 3 = 17
3x + 11 = 17
3x - 11 = 17

6: if f(x) = 2x - 9, then f(3) = -3.

true
false

7: domain, first element, and y-value all have the same meaning.

true
false

8: all functions are relations.

true
false

1. is not the same as , because the first statement is equal to and the second statement is equal to .

The first question is false.

2. The second statement is true, because when we multiply equal signs the result is always positive. In this case, both signs have the same nature, negative and negative, so the result is positive.

3. The expression is

First, we solve powers and divisons: (notice that the negative sign is outside the square power.

Then, we sum:

Therefore, the right answer is -52.

4. The equation is

Solving for

So, the answer is 13.

5. The expression is

So,

6. The function is , if , then .

Therefore, the statement is true.

7. False, beacuse the domain refers to the input values and y-values refers to output values. So, they don't means the same thing.

8. This statement is true, because to function be a function, first it has to be a relation, because a function must relate two sets to be one.

squares, rhombus, rectangles