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3 years ago

Which relation is a function?

Mathematics

1 answer:

Afina-wow [57]3 years ago

6 0

Answer:

First and last

Step-by-step explanation:

The first one is a parabola wich is function graph

The last one is straight line

the second isn't a function since some numbers give many values

the thirs is a cercle

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Factor the following expression using Reverse Distribution: 6n-24

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Answer:C 2(3n + 12)

Step-by-step explanation:

2 x 3n = 6n

2 x 12 = 24

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Step-by-step explanation:

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A motorboat takes 3 hours to travel 108 going upstream. The return trip takes 2 hours going downstream. What is the rate of the

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Let s and c be the rate of the boat in still water and the rate of the current, respectively. Then:
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Find the equation of the line that passes through (-2,3) and (4,-1).

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$Genera\ equation\ for\ line\\\\y=ax+b\\\\To\ find\ a\ and\ b\ substitude\ points\ (-2,3),\ (4,-1)\ into\ equation\\\\ \left \{ {{3=-2a+b}\ \ \ \ \atop {-1=4a+b\ |*-1}} \right.\\\\ \left \{ {{3=-2a+b}\ \ \ \ \atop {1=-4a-b\}} \right.\\+----\\\\Addition\ method\\\\4=-6a\ \ |:-6\\\\a=-\frac{4}{6}=-\frac{2}{3}\\\\b=3+2a=3+2* (-\frac{2}{3})=3-\frac{4}{3}=1\frac{2}{3}\\\\y=-\frac{2}{3}x+1\frac{2}{3}$

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3 years ago

What is the range of this relation (2,-3),(-4,2),(6,2),(-5,-3),(-3,0)

maxonik [38]

Answer:

Range of this relation = -3, 2

Step-by-step explanation:

We are given the following relation and we are to find its range:

$(2,-3),(-4,2),(6,2),(-5,-3),(-3,0)$

The set of all the possible dependent values a relation can produce from its values of domain are called its range. In simple words, it is the list of all possible inputs (without repeating any numbers).

Therefore, the range of this relation is: -3, 2

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3 years ago

Read 2 more answers