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Aliun [14]
3 years ago
8

Which is an equation of the line that passes through (-4,-2) and (4,2)?

Mathematics
1 answer:
N76 [4]3 years ago
4 0
The equation of a line is y = mx + b. Calculate the slope (m) from the 2 points.

m = (-2-2)/(-4-4) = -4/-8 = 1/2

We could stop here as only one answer has a slope of 1/2, namely A). But if you wanted to show that the y-intercept (b) was 0, you could use either of the points and substitute it into the equation of the line and solve for b.

(-4,-2):  
-2 = 1/2(-4) + b
-2 = -2 + b
0 = b

(4,2):
2 = 1/2(4) + b
2 = 2 + b
0 = b

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Write an expression that is the product of two factors and is equivalent to negative 5xminus30. Which expression is the product
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Answer:

-5(x+6)

Step-by-step explanation:

We are asked to write an expression that is the product of two factors and is equivalent to -5x-30.

We can see that greatest common factor of both terms is 5 as 5 times 6 is equal to 30.

Let us factor out negative 5 from both terms as:

-5(x+6)

Since the expression is product of two factors, therefore, our required expression would be -5(x+6).

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garik1379 [7]

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5 0
3 years ago
5+ 1/5x=5 what is x
Alenkasestr [34]

Answer:

x = 0

Step-by-step explanation:

Solve for x:

x/5 + 5 = 5

Put each term in x/5 + 5 over the common denominator 5: x/5 + 5 = x/5 + 25/5:

x/5 + 25/5 = 5

x/5 + 25/5 = (x + 25)/5:

(x + 25)/5 = 5

Multiply both sides of (x + 25)/5 = 5 by 5:

(5 (x + 25))/5 = 5×5

(5 (x + 25))/5 = 5/5×(x + 25) = x + 25:

x + 25 = 5×5

5×5 = 25:

x + 25 = 25

Subtract 25 from both sides:

x + (25 - 25) = 25 - 25

25 - 25 = 0:

x = 25 - 25

25 - 25 = 0:

Answer:  x = 0

4 0
3 years ago
Read 2 more answers
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