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3 years ago

Solve the system of equations by using substitution.

Mathematics

1 answer:

Nat2105 [25]3 years ago

5 0

Answer:

(x, y) = (-1, 1)

Step-by-step explanation:

$y = 2x +3 ----(1) \\\\y = x + 2 ----(2)\\\\substitute \ (2) \ in \ (1) : x + 2 = 2x + 3$

$x - 2x = 3 - 2\\\\-x = 1\\\\x = -1\\\\Substitute \ x = -1 \ in \ (2) : y = -1 + 2 => y = 1$

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Answer:

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2 years ago

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3 years ago

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tatyana61 [14]

Answer:

The system that represent the scenario is

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The solution in the attached figure

Step-by-step explanation:

Let

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y----> the acres of cotton

we know that

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using a graphing tool

the solution is the shaded area in the attached figure

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3 years ago

Which equation represents the graph shown?<br> (Picture attached)

Maurinko [17]

Answer:

correct answer is option B

Step-by-step explanation:

as we know equation of line

y = m x + c....................(1)

where c is the intercept

m is the slope

m = $\dfrac{y_2-y_1}{x_2-x_1}$

m = $\dfrac{35-0}{1-0}$

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putting value of m in equation (1)

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from the graph we can clearly see that line is passing through (0,0) hence

0 = 35 (0)x + c

c = 0

hence the equation of line comes out to be

y = 35 x

correct answer is option B

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3 years ago