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IrinaVladis [17]

3 years ago

5

What is the relationship among direct variation,lines,rates of change, and slope?

1 answer:

JulsSmile [24]3 years ago

5 0

A direct variation is a proportional equation. Such as:

For every 3 cookies, linda gets 1 glass of milk. The equation for this is y=3x where y is the glasses and x is the cookies. this is a direct variation. It also has a linear line. Linear means straight. Rate of change and slope are the exact same thing. They are the value of 'm' in y=mx+b

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Red ink pens are sold at $1.50 each black ink pens are sold at $30 which color is the cheaper buy?

Lena [83]

Answer:

Red Ink pens.

Step-by-step explanation:

Red ink pens are sold at $1.50 while Black ink pens are sold at $30. One black ink pens cost more than one red ink pen by $28.50.

7 0

3 years ago

Suppose f is a linear function . If f(8)-(3)=80, then what is f(18)-f(14)

worty [1.4K]

Answer:

64

Step-by-step explanation:

The common difference is 80 / (8 - 3)

= 16

So f(18) - f(14) = (18 - 14) * 16

= 54

5 0

3 years ago

Read 2 more answers

Find the inflection point of the function of f(x) = x³ -6x² +12x

Wewaii [24]

Points of inflections are zeroes of the second derivative. We have:

$f(x)=x^3-6x^2+12x\implies f'(x)=3x^2-12x\implies f''(x)=6x-12$

So, the second derivative equals zero if and only if

$f''(x)=0\iff 6x-12=0 \iff 6x=12 \iff x=2$

So, this is the only point of inflection of this function.

5 0

3 years ago

Explain how are fractions, decimals, and percent related

erik [133]

Answer:

the relationship between fractions, decimals and percents is that they are just different numerical expressions of the same value.

Step-by-step explanation:

For example, 50% = $\frac{50}{100}$ = 0.50

5 0

3 years ago

35°<br> 50°<br> ?<br> Find the measure of the missing angle:

Marianna [84]

Answer:

i think the answer would be 95 degree. im not absolutley positive though

Step-by-step explanation:

i added 35 and 50 and got the sum of 85 then i subtracted 85 from 180 and got 95

feedback is appreciated.

(i'm not gonna beg for brainliest)

4 0

2 years ago