Question

The graph SHOWS the amount of time that Dewayne spent on a practice exam based on the number of questions he completed. What is the function rule? How much time will he spend if the actual exam has fifty questions?

A graph shows number of questions along the x-axis and total time in minutes along the y-axis. The graph of the ordered pairs three comma six, seven comma fourteen, and eleven comma twenty-two

y equals two times x; twenty-five minutes

y equals x divided by two; twenty-five minutes

y equals two times x; one hundred minutes

y equals x divided by two; one hundred min

Answer 1

@Sunshine447

Answer 2

@jhonyy9

Answer 3

what do u think it is @Sunshine447

Answer 4

@IMStuck plz help me

Answer 5

I'm here to help you, ok?

Answer 6

ok

Answer 7

The function rule is the y is twice the value of its x. Do you see that?

Answer 8

to be honest no

Answer 9

The thing you have to do is pick two points and find the slope between them. This will give you the equation they are looking for as an answer.

Answer 10

When x = 3, y = 6 (3*2 = 6)...When x = 7, y = 14 (7*2 = 14)...When x = 11, y = 22 (11*2 = 22)

Answer 11

Do you see now?

Answer 12

Stay with me...this isn't too bad.

Answer 13

sorry I'm taking long its lagging

Answer 14

ok I'm starting to understand a little

Answer 15

Ok, first thing to do is to find the slope between 2 points on this graph. Since the line is a straight line the slope between any 2 points you pick will be exactly the same, so it doesn't matter which 2 we pick. So let's pick the first 2 points on the graph...(3,6) and (7,14) to find our slope.