## anonymous one year ago The table below represents a linear function f(x) and the equation represents a function g(x). x f(x) −1 −11 0 −1 1 9 g(x) g(x) = 5x + 1 Part A: Write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points) Part B: Which function has a greater y-intercept? Justify your answer. (4 points)

1. anonymous

help please i give medals :)

2. anonymous

@mathmath333

3. anonymous

@Elsa213

4. anonymous

@ramseysa

5. anonymous

@bubblegumpop<3

6. anonymous

@EmilyD22

7. anonymous

@Hero

8. anonymous

@justin12lo

9. anonymous

@zepdrix

10. anonymous

@sammixboo

11. anonymous

@triciaal

12. anonymous

@TuringTest

13. anonymous

@pooja195

14. anonymous

@dan815

15. anonymous

16. triciaal

f(x) plot the points use any 2 points find the slope change in y/ change in x g(x) given y = m x + b the slope is m

17. triciaal

compare the slopes means compare the 2 numbers approved sentence: the slope of "this function" is greater than (or less than) the slope of "that function".

18. triciaal

Part B y-intercept occurs when x = 0 find the y value when x = 0 for each function look at the 2 values which is greater

yeah triciaal is correct

20. anonymous

im a still a little confused on part A i don't understand how to solve to functions @triciaal

21. anonymous

@mathway

22. triciaal

|dw:1438875626046:dw|

23. anonymous

there are three plots so which do two do i use @triciaal

once again tell me the values of f(x) and g(x)

25. anonymous

x f(x) −1 −11 0 −1 1 9 g(x) g(x) = 5x + 1

26. anonymous

wait nvm i understand know thanks

27. anonymous

but could you help with another question

29. anonymous

yes both of you :)

ok:)

say and let me see i f i can

32. anonymous

The table below represents the distance of a car from its destination as a function of time: Time (hours) x Distance (miles) y 0 900 1 850 2 800 3 750 Part A: What is the y-intercept of the function, and what does this tell you about the car? (4 points) Part B: Calculate the average rate of change of the function represented by the table between x = 1 to x = 3, and tell what the average rate represents. (4 points) Part C: What would be the domain of this function if the car traveled the same rate until it reached its destination? (2 points)

i' m sorry darling probably i cannot ask tricial

34. anonymous

ok thanks anyways :)

36. anonymous

@triciaal can you help?

37. anonymous

@Kainui

38. anonymous

@mathstudent55

39. anonymous

@AliceCullen

40. anonymous

@200205650

41. anonymous

@Luigi0210

42. anonymous

can you help me?

43. triciaal

sorry I was away

44. triciaal

|dw:1438882790573:dw|

45. triciaal

Part A y-intercept when x = 0 look at the graph when x = 0 y = 900 y is the distance of a car away from its destination

46. triciaal

part B average rate of change of the function this is the change in distance with time change in distance y2-y1 change in time x2 - x1 see this is the same as the slope of the line? between x = 1 and x = 3

47. triciaal

|dw:1438883389612:dw|

48. anonymous

would it be 2?

49. triciaal

change in distance with time is the speed how many miles in what time

50. triciaal

x2 -x1 = 2 yes but you need to plug in the y values (from the table) then do all of the computation

51. triciaal

Part C the domain is the set of x-values that satisfies the function

52. triciaal

the question is asking first to find when y = 0 what is the value of x and then state the values of x in set notation

53. anonymous

I'm sorry but this is all confusing part b and c

54. triciaal

|dw:1438883984365:dw|

55. triciaal

you really need to read the responses then let me know what your question is

56. anonymous

ok

57. triciaal

start here |dw:1438884361237:dw|

58. anonymous

50/2= 25 is this right?

59. triciaal

sign

60. anonymous

sign?

61. triciaal

|dw:1438884802974:dw|

62. anonymous

oh i put the y values backwards and what does this represent?

63. anonymous

the -50

64. triciaal

65. anonymous

the distance a car is from its destination but thank you I got it now :) thanks for all your help i appreciate it!

66. triciaal

rate is the speed at which it is travelling 50 miles in one hour you are welcome

67. anonymous

thanks again have a nice day bye! :)

68. triciaal

you too