Mathematics

Chip

15 April, 22:19

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