The question is in the screenshot! pls dont be mean and just answer for points!

(21,3)

Step-by-step explanation:

A, C, D, E

Step-by-step explanation:

We can make an equation with the information given using slope-intercept form [ y = mx + b ]. m = slope and b = y-intercept.

y = 4/7x - 9

Let's check to see which points are on the line.

(14, -1)

-1 = 4/7(14) - 9

-1 = 8 - 9

-1 = -1

TRUE

(1, 9)

9 = 4/7(1) - 9

9 = 4/7 - 9

9 = -8 3/7

FALSE

(0, -9)

-9 = 4/7(0) - 9

-9 = -9

TRUE

(21, 3)

3 = 4/7(21) - 9

3 = 12 - 9

3 = 3

TRUE

(7, -5)

-5 = 4/7(7) - 9

-5 = 4 - 9

-5 = -5

TRUE

(4, 7)

7 = 4/7(4) - 9

7 = 16/7 - 9

7 = -47/7

FALSE

Best of Luck!

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.