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djyliett [7]
3 years ago
9

What are the coordinates of the focus and the equation of the directrix?

Mathematics
1 answer:
g100num [7]3 years ago
8 0
The answer is <span>C. focus: (–4,0); directrix: x = 4
</span>
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What is the slope of a line parallel to the line with equation 5x + 3y = 7?
weeeeeb [17]

Answer:

-5/3

Step-by-step explanation:

Parallel lines are lines which have the exact same slope but different y-intercepts. We can find the slope by converting to slope-intercept form, y=mx+b from standard form.

We convert by using inverse operations to isolate y.

5x+3y=7

5x-5x+3y=7-5x

0x+3y=-5x+7

3y=-5x+7

\frac{3y}{3} =\frac{-5x+7}{3} \\y=\frac{-5}{3}x+\frac{7}{3}.

The slope is -5/3. SInce parallel lines have the same slope, the slope for a parallel line will be -5/3.

3 0
3 years ago
Write the equation of line in slope-intercept form. Line parallel to y=−2x+3 that passes through the point (−100,−100)
GrogVix [38]

Remark

The line you want is parallel to y = - 2x + 3

That means it has the same slope as the given line.  The given line has a slope of  -2

y = -2x + b is what you have so far. Now you have to use the point to get b

y = - 100

x = - 100

Solve for b

-100 = -2(-100) + b

-100 = 200 + b       Notice the sign change. Two minus's make a plus. Subtract 200 from both sides.

- 100 - 200 = b

- 300 = b

Answer

y = - 2x - 100

3 0
3 years ago
Read 2 more answers
Monty documented the amount of rain his farm received on a monthly basis, as shown in the table.
hammer [34]

Answer:

No

Step-by-step explanation:

Because we need to see the table and information provided on the table otherwise we can't help you solve your problem.

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elixir [45]

Answer:

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Step-by-step explanation:

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If you have a job or allowance, how much do you take home per<br> week?
aev [14]

Answer:

it depends on the job pay and hours you work

Step-by-step explanation:

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