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STALIN [3.7K]
3 years ago
10

Solve each system by graphing y=2x-4

Mathematics
2 answers:
RoseWind [281]3 years ago
7 0
The thing to remember when you first graph an equation is,
y = mx +b
That equation is slope intercept form.
In slope intercept form, m is the slope of the equation. 
y = 2x - 4 the slope is 2 (or 2/1) when graphing remember that it's always x/y
As you're graphing remember to go over 2 and up 1. 
y = 2x - 4 the y intercept is -4. That's where you will start the graph on the y axis.
Hope that helps! :)
Blababa [14]3 years ago
3 0
Well if you have something for x you put it in the x and graph
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5 0
2 years ago
Help help help help help
dolphi86 [110]

Answer:

x = <u>12/5</u>

Step-by-step explanation:

Since the original is 10 and the second is 6, that means that the scale is 10:6 or 5:3.  It can also be related as %60 of the length.

<u>Step 1:  Make an equation</u>

10/6 = 4/x

<u>Step 2:  Cross Multiply</u>

10x = 24

<u>Step 3:  Divide</u>

10x / 10 = 24 / 10

24/10 = 12/5

x = 2.4

5 0
3 years ago
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Use the equation to complete an algebraic proof that proves the answer is x = 7/6. Write your proof in your journal and upload y
dimaraw [331]

Answer:

Step-by-step explanation:

Show that if 3x – 7 = 5, then x = 4.

Here, our given statement is 3x – 7 = 5, and we're asked to prove x = 4.

x=4

Statements Reasons

1. 3x – 7 = 5 Given

2. 3x – 7 + 7 = 5 + 7 Addition of 7 to equation (1)

3. 3x + 0 = 5 + 7 Substitution of –7 + 7 = 0 into (2)

4. 3x = 5 + 7 Substitution of 3x + 0 = 3x into (3)

5. 3x = 12 Substitution of 5 + 7 = 12 into (4)

6. 3x⁄3 = 12⁄3 Dividing equation (5) by 3

7. x = 12⁄3 Substitution of 3x⁄3 = x into (6)

8. x = 4 Substitution of 12⁄3 = 4 into (7)

Is there such a thing as being too descriptive? Yep, and that was it, since over half the proof was devoted to telling the reader how to do arithmetic. We'll typically take numerical computation for granted, and write proofs like this:

5 0
3 years ago
Given the equation y = (1/4)x - 5, what is the zero? Only write the number please
lawyer [7]

Answer:

so the zero is (20,0) but just so you know you can go to desmos and it will answer all of your graphing questions.

Step-by-step explanation:

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4 0
3 years ago
The Jackson family drove 496 miles in 8 hours. Which is the unit rate in fraction form?
vagabundo [1.1K]
You find the unit rate by dividing 496 by 8 
so
\frac{496}{8} =  \frac{62}{1}

Hope I helped 
3 0
3 years ago
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