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BartSMP [9]
3 years ago
12

Solve the proportion: x/9 = 4/x

Mathematics
2 answers:
AfilCa [17]3 years ago
4 0
X       4        
--  =  --  =  
9       x       

x^2 = 36
x = 6
Marrrta [24]3 years ago
3 0
\frac{x}{9}= \frac{4}{x} \\ x*x=9*4 \\ x^2=36 \\ x=б \sqrt{36}  \\ x=б6
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Select the correct answer. Which equation represents this line in point-slope form? A. `(y + 4) = (4)/(3) (x + 3)` B. `(y −4) =
Readme [11.4K]

Answer:

The correct option is `(y −4) = -(4)/(3) (x +3) ..

Step-by-step explanation:

Look at the attached picture:

The points we have given are (-3, 4) and (3, -4)

Find the slope by applying the formula:

m = y2-y1/x2-x1

Here x1= -3

x2= 3

y1 = 4

y2 = -4

Now put the values in the formula:

m = -4 -4 /3 -(-3)

m = -8/3+3

m = -8/6

Now cancel the term by table of 2

m = -4/3

When two points are given, the equation of the line is

(y - y1) = m (x - x1)

y - 4 = -4/3 (x - (-3))

y-4 =  -4/3 (x+3)

Thus the correct option is `(y −4) = -(4)/(3) (x +3) ....

4 0
3 years ago
This table lists the coordinates of points on a line. What is the y-intercept of the line?
alexgriva [62]

Answer:

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Step-by-step explanation:

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That is, the intercept with the y-axis is the value of the function when x is equal to zero.

In this case we know the following points of the function:

x  : -2    -1    0    1     2    3

y  : 16    12   8    4    0   -4

Note that when x = 0 then y = 8.

Therefore the line intercepts the y-axis and y = 8

3 0
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Answer:

D. All of this information is needed to solve the problem

Thank you

4 0
3 years ago
Does anybody know how to do this and explain it to me clearly plz and thx <br><br><br> - 1/2 x = 6
Usimov [2.4K]
1) first you multiply each side by -2
1a) that clears the -1/2
x = -12
3 0
4 years ago
Which point is not on a graph of the line 2x-y=-1
Natalka [10]

Answer:

(5)(3,6)

Step-by-step explanation:

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4 0
3 years ago
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