Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution? y=-x-1 y=x+3

Mathematics

2 answers:

Tasya [4]3 years ago

3 0

Answer:

C. (-2, 1)

Step-by-step explanation:

See the attached graph.

The slope of the first line is -1, and its y-intercept is -1.

The slope of the second line is +1 and its y-intercept is +3.

The solution is the point that is common to both lines, (-2, 1).

vichka [17]3 years ago

3 0

Answer:

C. (-2, 1)

Step-by-step explanation:

APEX

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Ksivusya [100]

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6 0

3 years ago

A-b

Lynna [10]

Answer:

$\boxed{\sf d. \ \frac{a}{b} = \frac{10}{7}}$

Step-by-step explanation:

$\sf \implies \dfrac{a - b}{b} = \dfrac{3}{7} \\ \\ \sf \implies \frac{a}{b} - \frac{b}{b} = \frac{3}{7} \\ \\ \sf \implies \frac{a}{b} - 1 = \frac{3}{7} \\ \\ \sf \implies \frac{a}{b} - 1 + 1 = \frac{3}{7} + 1 \\ \\ \sf \implies \frac{a}{b} = \frac{3}{7} + 1 \\ \\ \sf \implies \frac{a}{b} = \frac{3}{7} + \frac{7}{7} \\ \\ \sf \implies \frac{a}{b} = \frac{3 + 7}{7} \\ \\ \sf \implies \frac{a}{b} = \frac{10}{7}$