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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For a science report, Doug is measuring widths of mushrooms with a ruler that divides inches as shown. To determine each width,

Serga [27]

From the 3 options listed, both $5.25$ in and $6.5$ in could be measures found using a ruler with eighth inches marked, because those decimals can be written in terms of eighth fractions.

$5.25 $in $ \rightarrow (5 + 0.25) $in $ \rightarrow (5 + \frac{2}{8} ) $in$ \\ 
6.5 $in $ \rightarrow (6 + 0.5) $in $ \rightarrow (5 + \frac{4}{8} ) $in$$

The other option, $7.1$ in, is not a possibility because 0.1 cannot be written as a fraction of 8 that is marked on the ruler.