Hunter is going to graph the ordered pairs that are represented by this table on a coordinate plane. x –7 –3 0 1 5 9 y 4 0 2 6 0 –2 in hunter’s graph, how many points should lie on the y-axis? 0 1 2 3

Only 1 point lies on the y-axis. Second option is correct.

Step-by-step explanation:

The given table is

 x                 y

–7               4

–3               0

  0               2

  1               6

  5               0

  9              -2

The ordered paired are (-7,4), (-3,0), (0,2), (1,6), (5,0), (9,-2).

If the point lies on the y-axis, then its x-coordinate is 0. It means the coordinates of point are (0,y).

The x-coordinate of point (0,2) is 0. So, it is lies on the y-axis. The x-coordinate of point is not equal to 0.

Therefore, only 1 point lies on the y-axis. Second option is correct.

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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