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schepotkina [342]
4 years ago
5

Which set of ordered pairs represents a function? {(2, –2), (1, 5), (–2, 2), (1, –3), (8, –1)} {(3, –1), (7, 1), (–6, –1), (9, 1

), (2, –1)} {(6, 8), (5, 2), (–2, –5), (1, –3), (–2, 9)} {(–3, 1), (6, 3), (–3, 2), (–3, –3), (1, –1)}
Mathematics
2 answers:
ra1l [238]4 years ago
7 0
A function can't have x repeating any of the same number twice for example the first one (2, -2), (1, 5), (-2, 2), (1,-3), (8,-1) you have two 1's (1,5) and (1,-3) the x is the first number. Now a function can have the same y value. So your answer is (3, -1), (7,1), (-6,-1), (9,1), and (2,-1) you have to have all different x values in order for it to be a function. Hope that helps.
Aneli [31]4 years ago
7 0

Answer:

B

Step-by-step explanation:

BECAUSE I GOT AN 100

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2 years ago
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scZoUnD [109]

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5 0
3 years ago
Read 2 more answers
Is the angles 40,30,110 acute obtuse or right
ikadub [295]
40 is an acute angle.
30 is an acute angel.
110 is an obtuse angle.

The easiest way to remember is anything below 90° (which is a right angle) is acute (think, cute = small). Anything above 180° is obtuse.
4 0
2 years ago
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Which functions graph is a translation of the graph of f(x)= 3x^2 + 4 seven units down?
asambeis [7]

Answer:

Option C

Step-by-step explanation:

Consider the function f ( x ) = 3x^2 + 4;

f ( x ) = 3x^2 + 4,\\\\4 = vertex ( y - intercept ),\\\\\\

Now if this graph were to be translated 7 units down, considering the function was f ( x ) = 3x^2, the new graph would be f ( x ) = 3x^2 - 7. The same concept is applied to the graph f ( x ) = 3x^2 + 4;

4 - 7 = - 3,\\f ( x ) = 3x^2 - 3\\\\Solution - Option C

* Note that a translation doesn't effect the rate with which the graph changes, it only effect's it's position on the coordinate plane

<em>Hope that helps!</em>

4 0
3 years ago
The sum of twenty-one and five times a number f is 61
Lerok [7]
21+(5f)=61 

Subtract 21 to both sides of the equation
5f=40

Divide both sides by 5
f=8

The answer is 8
6 0
3 years ago
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