mtunes
28.04.2021 •
Mathematics
Lesson 27 QUIZ
Solve the problems.
Al practices the standing long jump. He records the distance, in feet,
of each of his jumps. His results are shown on the line plot below.
Use this line plot to answer questions 1 - 3.
Standing Long Jump Distances
X
X
х
X
X
X
х
X
х
+
+
6
5
530
in
51 53
Distance (feet)
1 What scale did Al use to make his line plot?
Write your answer in the blank.
Al used a scale of
ut
foot.
2 Find the jump length that Al made most often.
What is the total distance of the jumps of this length?
® 124 feet
® 16-feet
®
© 17 feet
© 182 feet
16.11
Solved
Show answers
More tips
- D Dating, Love, Relationships How Long Can Love Last?...
- S Science and Technology How to Make a Homemade Smoker: The Ultimate Guide...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- C Computers and Internet How to Create a Folder on Your iPhone?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Mathematics
- M Mathematics Simplify each using positive exponents only: questions on image...
- M Mathematics hello people on just wanted to say im doing a brainliest giveaway if you give the correct answer to 9x8 ill give you brainliest be fast...
- M Mathematics 5 + 0.08 + 0.004 in word form plz...
- M Mathematics Help :( someone can explain me...
- M Mathematics PLEASE HELP Identify the type for each triangle. (Please do not answer if you do not know so the right people get the points)...
- M Mathematics Which expression are equivalent to (d^1/8)^5...
- M Mathematics You work as a quality control inspector at the Oreo cookie factory. Your quality control standards for a package of Oreo cookies include a mean of 515 grams and a standard...
- M Mathematics Use ABC to find DAC and AB. B 67° A D 24 10 C с...
- M Mathematics The equation y-7/2=7/2(x-4) is written in point-slope form.What is the y-intercept of the equation -11/2 -1/2 1/2 3/2 PLEASE HELP...
- M Mathematics A new car was tested for the average gas mileage that it would receive. The tester was able to drive 2,250 miles on 125 gallons of gas. What is the expected gas mileage in...
Ответ:
Piecewise functions are pretty easy once you get the hang of it. Here is how I would graph one:
Start out by determining the points you want to graph.
First, look at your top function's domain. In the case of this problem, the domain is x < -4 for the function . That means we will be graphing the function of 4 + 2x for all of the values less than negative 4, not including negative 4. I usually like to come up with two or three points for each function, so in this case, Even though -4 is not included in the domain, we still want to choose -4 as one of our values. I would also pick -5 and -6. Plug these values in for x and solve. That will get you -4, -6, and -8 respectively. Next, look at your middle function's domain, which is -4 ≤ x ≤ 5. This means that we will be graphing the function -2x for every value between -4 and 5, including 4 and five. For the table, I would use the values -4, 0, and 5. When you plug them in, you get 8, 0, and -10 respectively. Lastly, look at your last function's domain, which is x > 5 for this problem. This just means that we will be using this graph for any values greater than 5, not including the 5. For the table, I would use the values 5, 6, and 7, which will give you 10, 12, and 14 respectively. At this point, your chart should look something like this (see picture of chart)Next, plot your points on a coordinate plane.
Two things to keep in mind: open circles DO NOT include the point, but closed circles DO. his is where the table above comes into play. We decided for the first function that -4 isn't included, but still included it in our table. That is because even the value -4.000000001 is, which is too hard to calculate exactly. You will graph an open circle at the point (-4, -4). Repeat this step with the point (5, 10), as that will be an open circle since it isn't included. The points (-4, 8) and (5, -10) will be included in the graph, since they are included in the domain, so graph them with a closed circle. The remaining points in your chart are for reference. I would plot them, but I would do it lightly so as not to get confused with the other more important points. Your final graph should look something like this (see picture of graph).Hope this helps! If you have any more questions or something isn't clear in my explanation, just let me know :)