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noor66
12.10.2019 •
Mathematics
Which correctly describes how the graph of the inequality −4y − x ≥ 7 is shaded?
above the solid line
below the solid line
above the dashed line
below the dashed line
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Ответ:
Below the solid line
Step-by-step explanation:
-4y - x ≥ 7
add x to both sides
-4y ≥ x + 7
divide by -4 on both sides
y ≤ -1/4x - 7/4 = (1.75)
Take the origin (0,0) and substitute it for the variables
y(0) ≤ -1/4(0) - 7/4
0 ≤ -7/4 = (1.75)
This statement is false, so you would shade on a graph, below the solid line, since this is where the origin would not be.
The line would be solid because the < is underlined.
Ответ:
Below the solid line
Step-by-step explanation:
Given inequality,
- 4y - x ≥ 7
Related equation,
- 4y - x = 7
Which is a line passes through (-7, 0) and (0, -1.75),
Since, '≥' represents the solid line,
Thus, join the points (-7, 0) and (0, -1.75) by dotted line,
-4(0) - (0) ≥ 7
⇒ 0 - 0 ≥ 7
⇒ 0 ≥ 7
Which is a false statement.
Hence, the correct option is,
'Below the solid line'
Ответ:
i dont know my brain hurts
Step-by-step explanation: