Hi, I just had an assignment I have been working on and I was wondering if someone could check my answers. Thank you to anyone that helps. :)
1. What are the next three terms in the sequence?
-3, 6, 15, 24,...
My answer - D) 33, 42, 51
2. Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff's garden produced 6 bulbs. In the second year, it produced 12 bulbs, and in the third year, it produced 24 bulbs. If this pattern continues, how many bulbs should Geoff expect in the eighth year?
My answer - C) 768 bulbs
3. What are the next three terms of the sequence 6, 12, 18, 24, ...?
My answer - 30, 36, 42
4. A car traveling at 46 mi/h slows to a speed of 23 mi/h in 5 seconds. It maintains this speed for 5 seconds and then slows to a stop after 5 more seconds. Which graph shows the car's speed over time?
My answer - B) (The graph starting at 45 on the Y axis and sloping downward to 15 on the x axis.)
5. Use the graph below to asnwer the question that follows. Which statements describes the speed of the remote-control car over time?
My answer - D) The speed of the car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increasing to 5 mi/h in the next 5 seconds, and then remains at 5 mi/h for the last 10 seconds.
6. Which terms correctly complete the table?
|Time (seconds)| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
|Distance (feet)| _, 32, 40, 48, _, 64, 72, 80, 88, _
My answer - 24, 56, 96
7. Which is a table of values for y = x - 6?
My answer -
A) X = -5, -8, -7
Y = 1, -14, -13
8. What is the slope of the linear function? Which graph represents the data?
Table:
X = -3, 0, 3, 6
Y = -6, -2, 2, 6
My answer - A) (Graph that shows slope -4/3.)
9. Which hill described in the table is the steepest and why?
Table:
Street: Dixie Hill, Bell Hill, Liberty Hill
Horizontal Distance (ft): 60, 60, 60
Vertical Rise of Street: 20, 40, 30
My answer - Bell Hill; it rises 2/3 foot for every 1 foot of horizontal travel.
10. Which graph represents the linear function y = 1/3x - 4?
My answer - B) (Graph that slopes upward to the right.)
11. Which graph represents the linear function y = -3x + 1?
My answer - C) (Third graph down).
12. Which function is a quadratic function?
My answer - A) y = 2/x
13. Melanie charges $4.50 per hour when she washes cars, plus %5.00 for supplies. Which function rule represents the amount y Melanie charges to wash cars for x hours?
My answer - B) y = 4.50x + 5.00
14. The sale price for shrimp at the local grocery store is $1.15 for the first ounce and $0.95 for each additional ounce. Which function rule shows how the cost of shrimp, y, depends on the number of ounces, x?
My answer - D) y = 0.95(x - 1) + 1.15
15. Which function rue represents the data in the table?
X = -3, -2, -1, 0, 1
Y = 1, -2, -5, -8, -11
My answer - D) y = 3x + 8
16. Use the table below to answer the question that follows.
Table:
N = 2, 4, 6
M = -8, -16, -24
My answer - D) M = -4n
The last remaining three are essay questions, however I believe I understand them well enough to get the correct answer.
I'm pretty sure they are all correct, however there's no harm in checking right? Thank you again to anyone who helps.
- Merlana
Most of them seem correct to me, however I am no math tutor. If you want to be sure, you will have to wait for any of the following users:
Ms. Sue
Steve
Damon
Writeacher