3 years ago

Over which interval(s) is the function decreasing?

Mathematics

1 answer:

mart [117]3 years ago

7 0

Answer:

Step-by-step explanation:

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Consider the line 5x-8y=8 what is the slope of a line perpendicular to this line what is the slope of a line parallel to this li

Sophie [7]

$\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2,\ \text{then}\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\\\\text{Convert the equation to the slope-intercept form}\ y=mx+b.\\\\5x-8y=8\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\-8y=-5x+8\qquad\text{divide both sides by (-8)}\\\\y=\dfrac{5}{8}x-1\to m_1=\dfrac{5}{8}\\\\perpendicular:\ m_2=-\dfrac{1}{\frac{5}{8}}=-\dfrac{8}{5}\\\\parallel:\ m_2=\dfrac{5}{8}$

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3 years ago

Y=5x-2 graphed is 1/3 a solution to the equation

ivolga24 [154]

Answer:

1/3 =5x-2

3(1/3)=3(5x-2)

1=15x-6

7=15x

x=7/15 (7/15 , 1/3)

Step-by-step explanation:

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3 years ago

What is the missing numerator?

Jet001 [13]

The answer is b)04 I did this on my test and got it correct

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3 years ago

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Goryan [66]

Answer:

9.04-6.98=2.06

4 0

3 years ago

Complete the table of values for y=6-2x<br><br> Also please work out 6-2x=3

Whitepunk [10]

Answer:

Step-by-step explanation:

x=0 y=6-2*0=6

x=1 y=6-2*1=4

x=2 y=6-2*2=2

x=3 y=6-2*3=0

6-2x=3

-6 -6

-2x=-3

2x=3

:2 :2

x=3/2

x=1.5

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3 years ago