MATHEMATICS MIDDLE SCHOOL

Use the domain and range of each of the following relations to determine which is a function.AND IF YOU COULD ALSO ANSWER THE QUESTION BELOW IT WOULD HELP

Answers

Answer 1

Answer:

Answer:

b. is the only set of points that is a function.

Step-by-step explanation:

A relation is a function is there is not more than one y assigned to a x.

A relation relates a variable to another variable. Option a does not not this.

A set of points is a relation. A trick to figuring out if is a function is to see if all x's are different.

Let's look at b. All the x's are different there so it is a function.

Now c, we see that there are two different points with the same x so this is not a function.

Now d, we see that there are two different points with the same x so this is not a function.

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A number is 5 times of another number.By adding 8 to each of them.the first number becomes 3 times the second number.What are the 2 numbers?(Show full workout)

Answers

First no. = 5 x
Second no. = x

Equation Formation
3(5 x +8 ) = x +8
15 x + 24 = x +8
15 x - x = 8 -24
14 x = - 16
x = -7/8
5 × -7/8 = -4 3/8

Answer = -4 3/8 , -7/8

Ben is greeting customers at a music store. Of the first 20 people he sees enter the store, 13 are wearing jackets and 7 are not. What is the experimental probability that the next person to enter the store will be wearing a jacket?

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Answer:

13/20

Step-by-step explanation:

maybe 1.857, if not the question is wrong

I need help with number 1 vocabulary

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Integers are whole numbers, whether they are negative or positive. They cannot be decimals, or fractions.

The numbers listed are 8, -4.1, -9, 1/6, 1.75 and 22.

The only integers are 8, -9, and 22; the other numbers are rational numbers.

What pattern will result from plotting all points x, y that satisfy an equation in the form ax+by=c

Answers

You only need to plot two points, because the pattern is a
straight line, and any two points on it define the entire line.

-- The slope of the line is [ -a/b ] .

-- The line intersects the x-axis at [ x = c/a ] .

-- The line intersects the y-axis at [ y = c/b ] .

Answer:

-- The slope of the line is [ -a/b ] .

-- The line intersects the x-axis at [ x = c/a ] .

-- The line intersects the y-axis at [ y = c/b ] .

Step-by-step explanation:

The points (0, 10) and (–3, –5) fall on a particular line. What is its equation in slope-intercept form?