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alexgriva [62]
3 years ago
9

Find the equation of the line. Use exact numbers

Mathematics
1 answer:
dsp733 years ago
5 0

Answer:

y= 3x + 3

Step-by-step explanation:

From the graph we get 2 points: (-1,0) and (0,3)

(0,3) tells us that b = 3

and we use the equation \frac{y1-y2}{x1-x2} to calculate m

m = \frac{3-0}{0- (-1)} = 3/1 = 3

so plugging m  and b into y = mx + b gives us

y = 3x + 3

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Solve for the given variable 7x+5y=6 for y
olga_2 [115]

Answer:

y = (6/5) - (7/5) x

Step-by-step explanation:

goal: to rearrange the equation such that it takes the form:

y = f(x) ; where f(x) is an expression in terms of x

Given:

7x+5y=6   subtract 7x from both sides

5y = 6 - 7x   (divide both sides by 5)

y = (6-7x) / 5

y = (6/5) - (7/5) x

4 0
3 years ago
The slope of y= 1/2x-7
Arisa [49]
The slope of y= 1/2x-7 is always positive because since the slope of this equation is “1/2”, 1/2 is always positive.
3 0
3 years ago
Read 2 more answers
79+b=159 <br> b= <br> send help pls... :)
Roman55 [17]
Subtract 79 from both sides to isolate variable b. 

b = 159 - 79
b = 80
3 0
3 years ago
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The area of a mirror is 225 square inches, and it's width is 13 3/4 inches. what is the length of the mirrror?
andreyandreev [35.5K]
A = l x w
225 = l * 13 3/4
225 ÷ 13 3/4 = l * 13 3/4÷ 13 3/4
16 4/11 = l

Length = 16 4/11 inches
4 0
3 years ago
The sum of a number 8 and twice the number X is 28
hichkok12 [17]

<u><em>ANSWERS ARE AT THE BOTTOM</em></u>

<u><em></em></u>

<u><em>To solve this question, we need to write the questions algebraically. Let's look at the problem first: The sum of a number 8, and twice the number x is equal to 28.</em></u>

<u>Algebraic form:</u>

8 + 2x = 28

<u><em>Lets solve this!</em></u>

<u><em></em></u>

8 + 2x = 28            (Algebraic Form)

2x = 28 - 8             (Subtract 8 from both sides)

2x = 20                  (Divide by 2)

<u><em>x = 10</em></u>                     (Answer)

<u><em>ANSWER:</em></u>

<u><em></em></u>

<u><em>x = 10</em></u>

3 0
2 years ago
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