anonymous
  • anonymous
This relation is already written in ordered pairs. The only thing you have to do is place the ordered pairs inside braces { } and name the relation! R = {(2, 3), (1, 2), (4, 2), (2, −1), (−2, 1)} EXPLAIN" dont give me the answer EXPLAIN. please help
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@ganeshie8 @jim_thompson5910
anonymous
  • anonymous
@chrisdbest @mathslover
anonymous
  • anonymous
i going to take a exam AND i need to understand

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jim_thompson5910
  • jim_thompson5910
I don't understand the question fully. What do they want exactly? Is that all it says?
anonymous
  • anonymous
look
anonymous
  • anonymous
A relation simply describes a relationship and pairs input values with output values. You can represent a relation in several ways. The snacks were represented as ordered pairs, like (3, pretzels). Let's look at a relation with pairs of numbers, instead of a number and a snack. Select each tab to see four ways this relation can be written. (2, 3), (1, 2), (4, 2), (2, −1), (−2, 1)
jim_thompson5910
  • jim_thompson5910
so it looks like you already wrote the answer
anonymous
  • anonymous
its just practice, but i need to understand the problem, because i going to take the exam
jim_thompson5910
  • jim_thompson5910
Is this practice applet providing the steps and answer?
anonymous
  • anonymous
never mind, explain me this
jim_thompson5910
  • jim_thompson5910
can you post a full screenshot of the entire problem?
anonymous
  • anonymous
Find the domain and range of the relation shown here in graph form.
1 Attachment
anonymous
  • anonymous
can you explain me this?
jim_thompson5910
  • jim_thompson5910
domain = set of x values range = set of y values
jim_thompson5910
  • jim_thompson5910
so you just list the x coordinates of each point to get the domain
anonymous
  • anonymous
(3,4) (5, 8)?
jim_thompson5910
  • jim_thompson5910
what are the x coordinates
jim_thompson5910
  • jim_thompson5910
hint: each point is of the form (x,y)
anonymous
  • anonymous
{−3, −1, 1, 5}?
jim_thompson5910
  • jim_thompson5910
very good, that is your domain
jim_thompson5910
  • jim_thompson5910
the range is similar, just with the y values
anonymous
  • anonymous
thank you, can you explain me with more questions? plz
jim_thompson5910
  • jim_thompson5910
sure I'll help with one more
anonymous
  • anonymous
Identify the slope and y-intercept of the equation. y − 4 = −3x.
jim_thompson5910
  • jim_thompson5910
add 4 to both sides to get y = ???
anonymous
  • anonymous
y − 4 = − 3x +4 +4 y = − 3x + 4
jim_thompson5910
  • jim_thompson5910
very nice
anonymous
  • anonymous
im right?
jim_thompson5910
  • jim_thompson5910
compare y = -3x + 4 to y = mx+b you'll find that m = -3 and b = 4 m is the slope b is the y-intercept
jim_thompson5910
  • jim_thompson5910
since m = -3, the slope is -3 since b = 4, the y-intercept is 4. This is the point (0,4)
anonymous
  • anonymous
yea, thank you for explain me
jim_thompson5910
  • jim_thompson5910
you're welcome

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