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pentagon [3]
3 years ago
5

How to tell if an equation is a function or not

Mathematics
1 answer:
Kay [80]3 years ago
5 0
You can tell an equation is a function<span> because every element in the domain has only 1 element in the range

For instance, lets take this set. (2,3)(4,5)(6,7)
The domain is 2,4,6 and our range is 3,5,7 for ever range there is only one unique range that goes with it.

Now, lets take this set. (2,4)(2,4)(3,5)
Here our domain is 2,2,5 and our range is  4,4,5
Here we can see that both 2 points to 4 so this is not a function. </span>
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irakobra [83]
Hello! The y-intercept is (0, 4), because the line crosses 0 in the x-axis at that point. We can cross out C and D, because those don't show that. The slope is rise/run. You would go up 3, and go to the right once. If you need to, solve for slope by doing y2 - y1/ x2 - x1. Let's use the point (0, 4) and (1, 7) as an example. We would set it up like this: 7 - 4 / 1 - 0. Solving that would give us 3/1 or just simply three. The slope is positive 3 and the y-intercept is (0, 4). The answer is A.
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2 years ago
PPPLLLLEEEAASSSEEEE HHHEEEELLLLPPPPP!!!!!!!
Yuliya22 [10]

Answer:

(3, 3) × 13 = (39, 39)

(0, 3) × 13 = (0, 39)

(6, -6) × 13 = (78, -78)

(9, 6) × 13 = (117, 78)

Step-by-step explanation:

Because the center of dilation is at (0, 0), or the origin, we can just multiply the x and y values of each point by the scale factor of 13.

(3, 3) × 13 = (39, 39)

(0, 3) × 13 = (0, 39)

(6, -6) × 13 = (78, -78)

(9, 6) × 13 = (117, 78)

Read more on Brainly.com - brainly.com/question/11445104#readmore

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ummmm it could be third one i guesss

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2 years ago
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How long would it take to travel 425 m at the rate of 50
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425 / 50 = 8,5

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9600 people would vote.

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