Question

The table below represents the velocity of a car as a function of time:

Part A: What is the y-intercept of the function, and what does this tell you about the car?

Part B: Calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents.

Part C: What would be the domain of the function if the velocity of the car was measured until it reached 60 miles/hour and the car does not change motion?

Answer 1

@kx2bay can you help?

Answer 2

y=2x+50

is th function what is th y intercept??

Answer 3

i don't know

Answer 4

when x=0 then y = ? or y-intercept

Answer 5

1?

Answer 6

y = 2(0) +50

y=?

Answer 7

50

Answer 8

yes

Answer 9

so the y intercept is 50

Answer 10

nevermind it's 2

Answer 11

yes - 50

average rate of change:

A(x) = f(x)-f(a)/x-a

plug in the values

Answer 12

f(1) and f(3) from the chart 52 and 56

so

52-56/1-3 =?

Answer 13

1 52
2 54
3 56

4 = 58
5 = 60

(5, 60), domain = 5, and range = 60.

Answer 14

thats for part c right?

Answer 15

no b

the last with domain is c

Answer 16

ok. so "f(1) and f(3) from the chart 52 and 56

so

52-56/1-3 =?" is b?

Answer 17

yes that is correct

Answer 18

ok thank you!

Answer 19

recap

a=50
b=2
and
c=5

Answer 20

cool i get it :D
can you help with another?

Answer 21

sorry gotta run

take care!!!