3 years ago

Is this relation a function? EXPLAIN WHY OR WHY NOT

Mathematics

1 answer:

ra1l [238]3 years ago

3 0

It is a function, because you are associating one and exactly one y-value to each x-value.

You might be interested in

Completely factorize (2x+3)^-2 + 2x(2x+3)^-3

Alexxx [7]

Hello,

$\dfrac{1}{(2x+3)^2} + \dfrac{2x}{(2x+3)^3} \\

= \dfrac{(2x+3)+2x}{(2x+3)^3}\\

= \dfrac{4x+3}{(2x+3)^3}$

4 0

3 years ago

Which number is irrational? -4 2/9 8.26 11

kipiarov [429]

Answer:

None of them are irrational.

Step-by-step explanation:

An Irrational Number is a real number that cannot be written as a simple fraction.

Therefore:

-4 can be written as -4/1

2/9 is already in fraction

8.26 can be written as 826/100

11 can be written as 11/1

None of them are irrational.

However numbers like $\sqrt{x}, \pi$ are irrational as they can not be represented as fractions.

3 0

3 years ago

Last week Karen spent $121.35 on food for her family. She only has $200 to spend every two weeks. How much does hse have left to

yan [13]

Answer:

$78.65

Step-by-step explanation:

take 200-121.35=78.65

$78.65

5 0

3 years ago

Read 2 more answers

Is P(3,2) and Q(2,3)represent the same point

nlexa [21]

Answer:no

Step-by-step explanation:

Because on a graph (2,3) means that the point is two along and three up while (3,2) means it is 3 along and two up.

6 0

3 years ago

1/y - 1/x = 1/60 3y - 2x = 6 (Simultaneous question)

Daniel [21]

1y - 1/x = 1/60 = x*y =60 = x=60/y

3y - 2(60/y) = 6

3y^2-120=6y

3(y^2-40-2y) =0

y^2-40-2y=0

y = 7.4

3(7.4)-2x=6

22.2-2x = 6

2x = -16.2

x = -8.1

6 0

3 years ago