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Studentka2010 [4]
3 years ago
8

Which graph is a function, and explain how you knew whether each graph was a function or not.

Mathematics
1 answer:
romanna [79]3 years ago
7 0
C is a function. You can tell easily by doing the vertical line test. Put your finger pen pencil, etc. up to the graph vertically and see if at any point it touches more than one point at once. If it doesn't, it's a function.
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B. Factor the polynomial 64x + 27y. If the<br> polynomial cannot be factored, write prime.
Aleks04 [339]
Prime it can’t be factored
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3 years ago
Determine the standard form of an equation that passes through (2,2) and (-6,4).
Mumz [18]
Slope = (4 - 2)/(-6 - 2)= 2/-8 = -1/4

y = mx + b
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equation
y = -1/4x + 5/2
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answer
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7 0
3 years ago
The sum of 8 times a number and 6 is 3
Ronch [10]

Answer:

Sum means '+'

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I hope this helped!

5 0
3 years ago
Read 2 more answers
100 POINTS! PLEASE HELP!
Nana76 [90]

Answer:

1. x=5. 2. x=3

Step-by-step explanation:

Ok, so I actually spent 2 hours doing the first problem, I considered the angles to be different at first, i will add my messy work if you are interested haha.

However, I realized that the only way this question can be possible to solve is if the angles are equal, and there is no information given to say that they are different (they are both indicated by one line, while angles that are different are usually represented with multiple lines).

The general method for such problems is to consider the ratio of the sides to the side lengths into which the long side is divided.

For the first picture, the answer can be found by: 9/(2x-1) = 15/(3x). From here, we find that x = 5 (do some algebra). I actually got the same answer when doing this problem with the sine rule.

I am only looking now at the second problem, and i can tell straight away that we can get the solution by solving 3/2.25 = 4/x. x = 3 after some algebraic manipulation.

So yeah, this was a not so fun experience of trying to do this problem without knowing the angles were equal, but i learned a lot haha :)

PS. I am only adding my terrible working out because i hate myself for being so silly

7 0
2 years ago
Read 2 more answers
Write 76 3/4 as a sum
Veseljchak [2.6K]
Hello there.

<span>Write 76 3/4 as a sum

</span>76.75
4 0
3 years ago
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