3 years ago

Is this function one-to-one? Explain how you determine your answer

1 answer:

7 0

A function for which every element of the range of the function corresponds to exactly one element of the domain. One-to-one is often written 1-1. Note: y = f(x) is a function if it passes the vertical line test.

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Is y=2x-1 proportional

GREYUIT [131]

Since y=2x+1 does not pass through the origin (i.e. there exists the constant term of 1 ), the variables y and x are not directly proportional - though, they do have a linear relationship.

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2 years ago

Evaluate 3.r” + 2y when r 3 and y 3

aleksandr82 [10.1K]

Answer:

first 2x3= 6

3.3 + 6 = 9,3

answer should be 9,3

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3 years ago

How solve this x+y=5 X-y=7

Misha Larkins [42]

$elimination\ methode\\\\\underline{+\left\{\begin{array}{ccc}x+y=5\\x-y=7\end{array}\right}\ \ \ \ |add\ both\ sides\ of\ the\ equations\\.\ \ \ \ \ \ 2x=12\ \ \ \ \ |divide\ both\ sides\ by\ 2\\.\ \ \ \ \ \ \ \boxed{x=6}\\\\subtitute\ the\ value\ of\ x\ to\ the\ first\ equation:\\\\6+y=5\ \ \ \ |subtract\ 6\ from\ both\ sides\\\boxed{y=-1}\\\\Answer:\boxed{\left\{\begin{array}{ccc}x=6\\y=-1\end{array}\right}$

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3 years ago

Luke scored 21 goals in 7 games. if he scores goals at the same rate how many goals will he score in 23 games

Gre4nikov [31]

Luke scored 21 goals in 7 games. if he scores goals at the same rate how many goals will he score in 23 games
the answer is 69
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3 years ago

If a tree diagram were drawn to determine the number of possible outcomes when choosing one of 3 shirts, one of 8 ties, and one

Orlov [11]

It should be D, 96. 3 x 8 x 4 = 96

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3 years ago