Function or Non-Function

Mathematics

1 answer:

Olenka [21]3 years ago

6 0

Answer:

2 is not a function.

3 is a function

Step-by-step explanation:

one x value should each have a line leading off it. there are 2 y values for one x values in question 2 so its not a function

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7/2x+1/2x = 18+ 9/2x

chubhunter [2.5K]

Answer:

x=-36

Step-by-step explanation:

Add the 7/2x +1/2x to be 8/2x which means that it'll be 4x=18=9/2

then subtract 9/2x on both sides so itll be

$4x=18+\frac{9}{2} x$

-9/2x -9/2x

$-\frac{1}{2} x=18$ because if you do 8/2-9/2 it's -1/2

then multiply the reciprocal to both sides so

$(\frac{2}{-1})(-\frac{1}{2}x)=(\frac{2}{-1})(18)$

which then cancels out -1/2 and makes it

x=-36

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4 years ago

X^2=81/100 solve the equation for x

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3 years ago

Customers per day: 98, 87, 93, 82, 101, 99, 97, 97, 91<br> Find the mean to the nearest tenth:

notsponge [240]

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7 0

3 years ago

Read 2 more answers

Please help me with this math problem.

Nina [5.8K]

Answer:

x=25

Step-by-step explanation:

because of vertical angles theorem you set them equal to each other

4x+50=150

subtract 50 from both sides

4x=100