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4 years ago

Which graph represents a decreasing function?

Mathematics

2 answers:

frozen [14]4 years ago

6 0

If its decreasing it would be C because your line is going down

Zinaida [17]4 years ago

6 0

Graph A represents a constant function; when x increases: y still the same (no change).

Graph B represents a growing function, when x increases , also y increases.

Graph C represents a decreasing (decay) function becasue when x increases, y decreases.

and for Graph D, it is not even a function .

So it would be: Graph C

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Debra is on the swim team. Each day she swims 850m. How many kilometers does she swim each day?

podryga [215]

0.85 km is the answer
hope it helped!

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3 years ago

to solve the equation |x-9|=0.5x, kiana graphed the functions f(x)=|x-9| and g(x)=0.5x on the same set of coordinate axes. She t

Pani-rosa [81]

Answer:

The answer is the option D

$f(6)=g(6)$ and $f(18)=g(18)$

Step-by-step explanation:

we have

$f\left(x\right)=\left|x-9\right|$

$g(x)=0.5x$

we know that

The solution of the system of equations is the intersection point both graphs

Using a graphing tool

see the attached figure

The solution are the points $(6,3)$ and $(18,9)$

therefore

The solution of the equation $\left|x-9\right|=0.5x$ are

$x=6, x=18$

For $x=6$

$f\left(6\right)=\left|6-9\right|=3$

$g(6)=0.5(6)=3$

$f(6)=g(6)$

For $x=18$

$f\left(18\right)=\left|18-9\right|=9$

$g(18)=0.5(18)=9$

$f(18)=g(18)$

therefore

$f(6)=g(6)$ and $f(18)=g(18)$ because the intersection points are common points for both graphs

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3 years ago

Read 2 more answers

2x + y = 3 x = 2y - 1

Ad libitum [116K]

2x+ y = 3
x = 2y - 1
Make sure there are NO SPACES in your answer. Include a comma in your answer.
It looks like I could substitute the x=2y-1. Into 2x+y=3
2(2y-1)+y=3
4y-2+y=3
5y=5
y=1
x=2(1)-1
x=1

(1,1)
CHECK
2x+y=3
2(1)+(1)=3
2+1=3
3=3
Left hand side=Right hand side
Check other equation
x=2y-1
1=2(1)-1
1=1
Therefore the solution is (1,1). Since the left hand side= right hand side in each equation

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3 years ago

Whats 30 divided by 6/7

Andre45 [30]

$30:\frac{6}{7}=30\cdot\frac{7}{6}=5\cdot7=35$

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3 years ago

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What is the simplified form of the quantity of x plus 9, all over the quantity of 8 − the quantity of x plus 3, all over the qua

olya-2409 [2.1K]

Is this the problem? 
(x+9)
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