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3 years ago

Another question help!! :(

Mathematics

2 answers:

Sergio039 [100]3 years ago

5 0

Answer: $y=\frac{3}{4} x-2$

Step-by-step explanation:

Ok they want this in slope intercept for which is y=mx+b.

b is the value of the y-intercept which is -2 on the graph.

Now we have y=mx-2

to find m we must find the slope. To find the slope we have to count how many units up/down and right/left it is to the next point.

The next point is (4, 1) which is 3 up and 4 right from the y intercept.

This means our slope is $\frac{3}{4}$ and now we can sub it in

y= $\frac{3}{4}$ x-2

zlopas [31]3 years ago

4 0

Answer:

y = 3/4x -2

Step-by-step explanation:

Slope can be found by looking at the y-intercept (-2) and counting up and across the number of squares until the line crosses another corner of a square, exactly.

So, starting from -2 count up 3 and over to the right 4.

Up is positive 3, right is positive 4

slope is 3/4

(-2) is the y intercept. Also known as the b in the formula:

y=mx+b

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After your instructor added 4 points to each student's test score, your score is 92.

Alexandra [31]

88

92-4=88

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7 0

3 years ago

What is the greatest common factor of 9x^{2}y9x 2 y and 5x^{4}y^{2}5x 4 y 2 ?

Musya8 [376]

ANSWER

The greatest common factor is
${x}^{2} y$

EXPLANATION

We want to find the greatest common factor of

$9 {x}^{2} y$

and

$5 {x}^{4} {y}^{2}$

The prime factorizations are;

$9 {x}^{2} y = {3}^{2} \times {x}^{2} \times y$

and

$5 {x}^{4} {y}^{2} = 5 \times {x}^{4} \times {y}^{2}$

The product of the least powers of the common factors is the greatest common factor.

$= {x}^{2} y$

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4 years ago

Suppose you write a system of equations to find out which of two video stores is cheaper to join, depending on the number of vid

SCORPION-xisa [38]

The right answer is c

6 0

3 years ago

-1.398 = 2.2 + n/-5.53<br> Does this look good so far? <br> -1398 = 2200 + n/5530 - 2200

insens350 [35]

Answer:

n = 19.89694

Step-by-step explanation:

You can work the problem using decimal numbers. There is no need to convert everything to integers. Trying to do so just gets you in trouble.

Subtract 2.2 from both sides:

-1.398 -2.200 = n/-5.53

-3.598 = n/-5.53

Now, multiply both sides by -5.53:

(-5.53)(-3.598) = n = 19.89694

_____

The one rule that cannot be violated in algebra is that <em>you must do the same thing to both sides of the equation</em>.

_____

Your "solution" so far has a couple of errors. The first is that you have apparently multiplied all of the numbers by 1000. Unfortunately, when you multiply a denominator by 1000, it is the same as dividing by 1000. So, you have multiplied the left side by 1000, multiplied one term on the right by 1000 and divided another term on the right by 1000. This turns the equation into something different than what you started with, and will give a wrong answer.

The second error is that you have subtracted 2200 only from the right side. This, too, will turn the equation into something different than what you started with, and will give a wrong answer.

7 0

4 years ago

What is the domain of this function?

Luda [366]

A

Explanation-
Domain is the X, which is also independent. So you look at the first circle, or in more detail, the circle that has arrows pointing AWAY from it.

4 0

3 years ago