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larisa86 [58]
3 years ago
5

Solve the following system of equation graphically 2x+y=-1 and x+2y=4

Mathematics
1 answer:
Mumz [18]3 years ago
4 0
As 2x + y = -1

Then,

y = - 1 - 2x

We can to replace on the bellow equation.

x + 2y = 4

x + 2.( -1 -2x) = 4

Doing the distributive

x + 2.(-1) + 2.(-2x) = 4

x -2 -4x = 4

-3x -2 = 4

-3x = 4 + 2

-3x = 6

x = 6/-3

x = -2
________________

Then, the value of y will be:

y = -1 -2x

y = -1 -2.(-2)

y = -1 + 4

y = 3
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Given:

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To find:

The value of the x-coordinate of point Z.

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AZ:AB=1:8

AZ:ZB = AZ:(AB-AZ)= 1:(8-1) = 1:7

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Using section formula, the x coordinate of point Z is

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For the straight line defined by the points (2,55) and (4, 87), determine the slope (m) and y-intercept?
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Answer:

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Step-by-step explanation:

Given:

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Using two point form to calculate slope:

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gulaghasi [49]

Answer:

\frac{1}{24,000}

Step-by-step explanation:

we know that

When we compare positive fractions with the same numerator, the largest rational number will be the fraction with the lowest denominator

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