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2 years ago

8

PLEASE HELP ME WITH THIS THX!!!!!I REALLY NEED HELP WITH THIS!

2 answers:

Daniel [21]2 years ago

7 0

1. first point is x int., when y=0
x-4*0=-18, x=-18
(-18,0)
2. second point, y int, when x=0
0-4y=-18
-4y=-18
y=-18/-4=4.5
(0,4.5)
3. you can choose y=1, then x-4=-18, x=-14 , (-14,1)
or for this graph is
maybe better y=4, x-4*4=-18, x=-2 (-2,4)
x-4y=-18, y=3, x=-6 (-6,3)

UkoKoshka [18]2 years ago

4 0

I just want to reccomend desmos, it really helped me with graphing because im not so good at it

But what I got is:
x-4y=-18
x=-18+4y

Root(-18,0)
Y-intercept: (0, 9/2)

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Could you help me solve this problem ASAP :D

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3 years ago

After John worked at a job for 10 years, his salary doubled. If he started at $x, hls salary after 10 years is

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Step-by-step explanation:

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3 years ago

Pls halp<br><br> is the function even, odd, or neither and why

Valentin [98]

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2 years ago

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The function C(x)=−20x+1681 represents the cost to produce x items. What is the least number of items that can be produced so th

Reptile [31]

Answer:

<em>The least number of items to produce is 41</em>

Step-by-step explanation:

<u>Average Cost</u>

Given C(x) as the cost function to produce x items. The average cost is:

$\displaystyle \bar C(X)=\frac{C(x)}{x}$

The cost function is:

$C(x) = -20x+1681$

And the average cost function is:

$\displaystyle \bar C(X)=\frac{-20x+1681}{x}$

We are required to find the least number of items that can be produced so the average cost is less or equal to $21.

We set the inequality:

$\displaystyle \frac{-20x+1681}{x}\le 21$

Multiplying by x:

$-20x+1681 \le 21x$

Note we multiplied by x and did not flip the inequality sign because its value cannot be negative.

Adding 20x:

$1681 \le 21x+20x$

$1681 \le 41x$

Swapping sides and changing the sign:

$41x \ge 1681$

Dividing by 41:

$x\ge 41$

The least number of items to produce is 41

8 0

2 years ago

Rewrite y = x2 + x - 20 in factorized form.

Tcecarenko [31]

Answer:

y = x2 + x - 20 factors into

y = (x +5) * (x -4)

Step-by-step explanation:

3 0

2 years ago

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