Question

Helppp?

Answer 1

The graph below shows the distance (y) in kilometers of two cars from their destination at different times (x) in minutes. The table shows the values plotted on the graph.

Answer 2

Time
(in minutes)
x 0 10 20 30 40 50
Car 1
(in km)
y 50 40 30 20 10 0
Car 2
(in km)
y 50 40.85365 33.3804 27.2742 22.285 18.2085

Answer 3

Part A: What does the x-intercept of the function for car 1 represent? (2 points)

Part B: What does the y-intercept of the function for car 2 represent? (2 points)

Part C: What is the domain of the functions for car 1 and car 2? (2 points)

Part D: What is the average rate of change from x = 20 to x = 40 for the function representing the motion for car 2? What does the value of this average rate of change represent? (4 points)

Answer 4

@phi

Answer 5

just tell me if you don't get it

Answer 6

The graph below shows the distance (y) in kilometers of two cars from their destination

boil it down to "distance from their destination"

to answer part A
Part A: What does the x-intercept of the function for car 1 represent?

any idea ?

Answer 7

the time?

Answer 8

the time to reach its destination

Answer 9

yes

Answer 10

then wouldn't part B be the distance the car goes

Answer 11

Part B. the y-intercept is the distance at time 0. So it is the distance the car is from its destination. or the distance it has to go to reach its destination.

Answer 12

Okaay, part c has me a little confused

Answer 13

the domain is the x values

Answer 14

ohhh alright :)

Answer 15

I know how to do part d i'm pretty sure

Answer 16

I would say the positive real numbers... but the graph shows a line for negative x values... so they may want all real numbers?

Answer 17

wouldn't the domain be 0,10,20,30,40,50 though?

Answer 18

you could try that for an answer, but they may want all real numbers...

Answer 19

I'll try it

Answer 20

please help with pard D a bit confused here

Answer 21

Which table shows that each time x changes by 4, y changes by 4?