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3 years ago

On a piece of paper, graph y=4x-2. then determine which answer matches the graph you drew?

Mathematics

1 answer:

Natalka [10]3 years ago

3 0

Because this equation is in slope-intercept form, we can tell exactly how it will look by checking out 3 key points.

Leading coefficient: negative, or positive.

In this case, the leading coefficient is positive, which means that the slope will be going from bottom left to upper right.

Leading coefficient = slope

In this case, the slope is 4, or 4/1, so it will be at a steep incline.

Value of constant = y-intercept.

In this case, the y-intercept is -2, which will help us narrow down our choice.

<h3><u>After reviewing the three answer choices, the most likely selection will be A, as it seems to have a slope of 4, it is positive, and it has a y-intercept of -2.</u></h3>

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If he read 9 books in january and read 4 more in july than he did in january then he read 13 books in july.

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3 years ago

PlsAnsweRRRRR<br><br><br><br>The median value is .

Anna11 [10]

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The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. ... If there is an odd amount of numbers, the median value is the number that is in the middle, with the same amount of numbers below and above.

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2 years ago

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PLEASE HELP :( ASAP

kenny6666 [7]

Answer:

A. 272 cm^2

Step-by-step explanation:

The area of the rectangle is 17cm * 7cm = 119 cm^2

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<em>Answer: 119+153 = 272 cm^2</em>

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2 years ago

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What expression represents the area of the triangle

Setler79 [48]

Answer:

The first choice

Step-by-step explanation:

Area of a triangle is 1/2x base x height

the base is 10 and height is 24

26 is the hypotenuse but it is not used in calculating the area

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3 years ago

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sarah can complete a project in 90 minutes and her sister betty can complete it in 120 minutes if they both work on the project

alukav5142 [94]

Answer:

It will take them approximately 51.43 minutes to complete the project together

Step-by-step explanation:

This is what is called a "shared job" problem.

The best way to work on them is to start by finding the "portion" of the job done by each of the people in the unit of time.

So, for example, Sarah completes the project in 90 minutes, so in the unit of time (that is 1 minute) she completed 1/90 of the total project

Betty completes the project in 120 minutes, so in the unit of time (1 minute) she completes 1/120 of the total project.

We don't know how long it would take for them to complete the project when working together, so we call that time "x" (our unknown).

Now, when they work together completing the entire job in x minutes, in the unit of time they would have done 1/x of the total project.

In the unite of time, the fraction of the job done together (1/x) should equal the fraction of the job done by Sarah (1/90) plus the fraction of the job done by Betty. This in mathematical form becomes:

$\frac{1}{x} =\frac{1}{90} +\frac{1}{120}\\\frac{1}{x} =\frac{4}{360} +\frac{3}{360}\\\frac{1}{x} =\frac{7}{360} \\x=\frac{360}{7} \\x=51.43\,\,min$

So it will take them approximately 51.43 minutes to complete the project together.

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3 years ago