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2 years ago

Which rule describes a linear relation?

Mathematics

1 answer:

igor_vitrenko [27]2 years ago

8 0

Answer:A, B and D

Step-by-step explanation:

A linear relationship is one in which when the variables are plotted, the graph would be a straight line. In a linear relationship, the highest power of the variables is 1. We would compare each of the given relations.

A) Double x and subtract five to get y. This is expressed as

2x - 5. It is a linear relationship.

B) Multiply x and y to get 20. This is expressed as

xy = 20. It is a linear relationship.

C) Multiply x times itself and add five to get y. This is expressed as

x^2 = y. It is not a linear relationship. The highest power of the variables is 2

D)Divide 40 by x to get y. This is expressed as

40/x = y. It is a linear relationship.

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Find the slope of the line containing the points (1, 4) and (3, 7).

irina1246 [14]

Answer: 3/2

Step-by-step explanation:

the formula to find slope is:

m = rise/run = $\frac{y2-y1}{x2-x1}$

In this case:

m = 3/2 = $\frac{7-4}{3-1}$

6 0

2 years ago

PLEASE HELP QUICK ASAP

tankabanditka [31]

Answer:

Julie's share of the profits is (6/16)($4000) = $1500

Step-by-step explanation:

Write and solve an equation of ratios:

Jane's contrib. $10000 10

---------------------- = -------------- = ------ .

Julie's contrib. $6000 6

Adding 10 and 6 together, we get 16.

Julie's share of the profits is (6/16)($4000) = $1500. Jane would take (10/16)($4000), or $2500.

7 0

2 years ago

A rectangular park is 85 yards wide and 120 yards long.

ki77a [65]

Answer:

A=10506.25 Sq.yards

Step-by-step explanation:

Width of the park=85 yds

Lenght of the park=120 yds

Now,

A=L*W

A=120*85

A=10200 square yards. This is the area of your given rectangle.

Now,

P=2(L+W)

P=2(120+85)

P=2(205)

P=410 this is the perimeter of your given rectangle.

Now,

a=410/4=102.5

Now,calculate the area of newly given distance of each side:

A=a^2

A=102.5^2

A=10506.25 Sq. Yards

This is the new area and is larger than the area of the given rectangle which was 10200 square yards.

3 0

3 years ago

Determine whether the rule represents an exponential function. Explain why or why not.

Alenkasestr [34]

Answer:

Yes.

Step-by-step explanation:

Exponential Parent Function: $f(x)= a(b^{x})$

If we write out the equation:

$y = 6(5)^{x}$

Whenever we have an exponent of <em>x</em>, it is a exponential function. The 5 is simply the base of the exponent and the 6 means we are vertically stretching the graph by a factor of 6.

5 0

2 years ago

4,357.25 rounded two decimal places

Amiraneli [1.4K]

Answer:

$4357.25$

Step-by-step explanation:

Given the following question:

$4357.25$
$4357.250$
$0$
$=4357.25$

The following number is already rounded two decimal places which means the answer is "4357.25."

In case you meant one decimal place....

$4357.25$
$5=5$
$=4357.3$

Hope this helps.

3 0

2 years ago