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3 years ago

Find the slope of the line passing through the points (-5, 3) and (7,9).

Mathematics

2 answers:

dybincka [34]3 years ago

5 0

Answer:

$\huge\boxed{slope=\dfrac{1}{2}=0.5}$

Step-by-step explanation:

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points

$(-5;\ 3)\to x_1=-5;\ y_1=3\\(7;\ 9)\to x_2=7;\ y_2=9$

Substitute:

$m=\dfrac{9-3}{7-(-5)}=\dfrac{6}{7+5}=\dfrac{6}{12}=\dfrac{6:6}{12:6}=\dfrac{1}{2}$

Reptile [31]3 years ago

4 0

Answer:

1/2

Step-by-step explanation:

We can use the slope formula since we have 2 points

m = ( y2-y1)/(x2-x1)

= (9-3)/( 7 - -5)

= (9-3) /( 7+5)

= 6/ 12

= 1/2

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tigry1 [53]

Hey there!

<h2>ANSWER: $f=-16$ </h2><h2>EXPLANATION:</h2>

$\frac{f}{4}-5=-9$

Simplify both sides and you get:

$\frac{1}{4}f-5=9$

Now add 5 to both sides and you get:

$\frac{1}{4}f=-4$

Now you have to multiply both sides and you get:

$f=-16(ANSWER)$

Hope this helps!

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6 0

3 years ago

A small ior shows the data is

Neko [114]

Answer:

Don't have enough infromation to answer that.

Step-by-step explanation:

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3 years ago

To gather information on customer satisfaction, a researcher randomly selects four store locations and interviews all the custom

Schach [20]

Answer:

This sampling technique is called cluster

Step-by-step explanation:

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

In this question:

The population is divided into groups(by stores), and all elements of the groups(all customers at the stores are sampled), which is the characteristic of a cluster sampling.

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3 years ago

Find the equation of the line with a slope of 3/4 and passes through (4-2)

Ira Lisetskai [31]

Answer:

y = 3/4x - 5

Step-by-step explanation:

An equation of a line can be written in slope-intercept form:

y = mx + b

where m is the slope and b is the y-intercept.

Let's plug in what we know.

The slope is 3/4.

y = 3/4x + b

To find b, we want to plug in a value that we know is on this line: in this case, I will use the point (4, -2). Plug in the x and y values into the x and y of the standard equation.

-2 = 3/4(4) + b

To find b, multiply the slope and the input of x(4)

-2 = 3 + b

Now, subtract 3 from both sides to isolate b.

-5 = b

Plug this into your standard equation.

y = 3/4x - 5

This is your equation. It has a slope of 3/4, and passes through (4, -2)

Hope this helps!