PLEASE HELP!
1. Ariel travels 400 miles in 8 hours. What is her rate of change or speed?
Enter your answer in the box:
2.Which linear equation is the BEST representation of the line of best fit for the scatter-plot?
A) y = 3
B) x = 3
C) y = -3
D) x = -3
3. Which linear equation BEST represents the line of best fit for the scatter-plot? A) y = 1 3 x - 1
B) y = -1 3 x + 1
C) y = 3x + 1
D) y = 3x - 1 4)
4. Which of the choices is NOT a good example of a line of best fit?
A)
B)
C)
D)
The cost of tuition at Johnson Community College is $160 per credit hour. Each student also has to pay $50 in fees. Model the cost, C, for x credit hours taken. A) C(x) = 50x
B) C(x) = 160x
C) C(x) = 110x
D) C(x) = 160x + 50