Question

Which of the following could be equal to -|x| ? Select all that apply.



a. -1
b. -2
c. 1
d. 2

Answer 1

anything inside the absolute value bars | | come out positive
so a negative sign in front of something positive would give you a negative number

Answer 2

is it b

Answer 3

yes :) that is one of the possible answers
it says "select all that apply" which means that you have have more than one answer
so can you think of another answer that would fit? :)

Answer 4

and d

Answer 5

not quite D, because d is a positive number
we want a number that's negative :)

Answer 6

Create a story that is about one page in length using at least five different algebraic expressions and/or equations. These are some example story starters that you can adapt from or expand upon. Be creative and come up with your own characters and scenarios and create expressions and equations as well.
Story Starter 1: A character is offered five different jobs. They all include an hourly wage, as well as a set weekly base pay. One example is a job that pays $8.50 an hour, plus an additional $25 bonus for the week. (Weekly base pay is what you automatically get paid for working the entire week. A bonus is money you earn in addition to the weekly base pay.)
Story Starter 2: A character is searching for the best cell phone plan to buy. One plan costs $25 a month, plus $0.89 per minute used.
Story Starter 3: A character is trying to decide which cab to choose from the five available. All the cabs have different rates per mile. They also charge different flat rates in addition to the rates per mile. One cab is offering a rate of $0.75 per mile, plus a flat fee of $25.
Example Story Using Five Equations Luke is shopping for a movie to watch with his family. He goes to a video store and reads the sign in the store that describes their rental policy.
He thinks to himself as he reads. “To rent a DVD, I must pay the flat rate of $4.99 for three days, plus $1.99 for every day it's late.” To make a mathematical equation, the cost to rent one DVD, y, is $4.99, plus $1.99 for every day it is late, x. He comes up with this equation: y= $4.99 + $1.99x. As Luke drives home from the store, he wonders if he will have enough gas to get there. He thinks, “I know my car gets 30 miles per gallon.” He then thinks about an equation that he can use to model the situation where d is the total number of miles he can drive, and g is the number of gallons of gas that he has. He comes up with d = 30g.
Luke decides to get a drink at the neighborhood store. The store is advertising a special on all their giant smoothies, which are Luke’s favorite. The sign for the giant smoothies reads: “Buy a giant cup for $0.99 and fill it up for $0.50 an ounce. Luke is really thirsty and wants to figure out if he has enough money to buy a big drink. If he lets the variable s be the cost of the smoothie and n be the number of ounces he buys, then the total cost of the drink will be s = 0.99n.
Before he leaves the store, Luke remembers that he went to a basketball game a few nights ago. It was a great game, down to the last second! He logs on to his computer to read an article about the game. The article begins: “The Spartans won the game by scoring 30 points every hour.” What equation would represent this situation? Luke thinks of p as the total points earned in a game and h as the number of hours played. He decides on the equation p = 30h. As he thinks of the problem, he realizes that this equation fits the information in the story but might not be the way to figure out the number of points scored in every basketball game.
While he's browsing the site, Luke then considers reading some items in the business section. He has been reading lately about how the stock market works, and he is interested in stock trends over the past year. He reads that the stock for a medical company has earned money this year with an average rate of return of about 10 percent. He thinks of an equation for this. The change of the cost of one share of stock over the past year is 0.10. If he uses the variable c for new cost


of the stock, and b for the cost of one share of the stock, he would arrive at the equation c = 0.10b to find the new cost of the stock.

Answer 7

so which story starter would you like to try? :)

Answer 8

the 1

Answer 9

wahhh D: sorry but I really have trouble doing word problems >,< I'm really sorry, I can't help you with this one... :(

Answer 10

the 2

Answer 11

I'm really not good at word problems I don't know how to help you with this one overall, Sorry :(

perhaps you can close this question and repost your problem and someone else could help?