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Sophie [7]
3 years ago
11

Someone please help me with an explanation please! Asap would be nice :)

Mathematics
1 answer:
Irina18 [472]3 years ago
6 0

HOW TO DETERMINE SLOPE AND Y-INTERCEPT: Use the instructions below to answer this question.

EQUATION: y=\frac{-3}{4}x-3

-------------------------------------------------

<h2>INSTRUCTIONS:</h2>

FINDING THE Y-INTERCEPT:

Do this simply by finding the number your graph starts at on the Y-Axis (vertical line)! In this case, it's at -3!

FINDING SLOPE:

Remember that slope is rise over run (\frac{rise}{run})

RISE = How far the line goes <em>up </em>and <em>down</em>.

RUN = How far the line goes <em>left </em>or <em>right</em>.

HOW DO I FIND IT? All you have to do is count both rise and run from one point on the line to another! WARNING: The point must hit at a vertex, it cannot be counted if it is in the center of the box, or anywhere that does not touch the edge. I also suggest starting from the <u>Y-Intercept</u> and counting.

GOING LEFT OR DOWN: This is a positive number

GOING RIGHT OR UP: This is a negative number.

(You will see how this applies, below, yayyyy)

CALCULATING OUR NUMERATOR, AKA RISE:

Starting from the y, to get to the next point on the line, you can see we have to go down three. This means our numerator is -3!

CALCULATING OUR DENOMENATOR, AKA RUN:

Starting from where we just stopped, we must continue getting to the next point, and to do that, you can see we have to go to the right four! This means our denomenator is 4!

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Last question! Please show work. Really need to get this done in 1 hour
Sav [38]

Answer:

x=1; y=2; z=3

Step-by-step explanation:

Rearrange for convince:

2y-4z+6x = -2

-4y+2z-3x=-5

-6y+3z+4x=1

Now we take to pairs and eliminate the same var.:

2y-4z+6x = -2 *2

-4y+2z-3x=-5

and

-4y+2z-3x=-5 *-3

-6y+3z+4x=1. *2

We get:

4y-8z+12y=-4

-4y+2z-3x=-5

= -6z+9x=-9

and

12y-6x+9x=15

-12y+6x+8x=2

= 17x=17

We now know x = 1, so z is:

-6z+9=-9

-6z=-18

z=3

Let’s grab the first formula and find y:

6+2y-12=-2

6+2y=10

2y=4

y = 2

7 0
2 years ago
Convert the decimal expansion 0.31717 to a fraction.
Ipatiy [6.2K]
0.31717 can be written as the fraction <span>31717/100000.

I hope this help :P</span>
4 0
3 years ago
Solve the linear equation: 3.4 + 2(9.7 – 4.8x) = 61.2 What are the possible steps involved in solving this equation? Check all t
Leno4ka [110]
The answers for the exercise shown above are the second option, the third option, the fifth option and the sixth option, which are:
 2) <span>Distribute 2 to 9.7 and −4.8x.
 3) Combine 3.4 and 19.4.
 5) Substract 22.8 from both sides.
 6) Divide both sides by −9.6
 The steps are shown below:
 </span><span>3.4+2(9.7-4.8x)=61.2</span> 
 3.4+19.4-9.6x=61.2
 22.8-9.6x=61.2
 228-22.8-9.6x=61.2-22.8
 -9.6x=38.4
 -9.6x/-9.6=38.4/-9.6
 x=-4
6 0
3 years ago
Read 2 more answers
Select all equations that have graphs with the same y-intercept.
Firdavs [7]
Y=3x-8,5x-8,2x-8,1/3x-8 how to find it is to look at the (x,y) if the equation have the same y (y-intercept)
8 0
3 years ago
Two student share 3 granola bars equally. How many granola bars does eachstudent get?
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1 and they split the other in half 
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