All categories

3 years ago

Based on the family the graph below belongs to, which equation could represent the graph?

Mathematics

2 answers:

photoshop1234 [79]3 years ago

7 0

Answer:

Step-by-step explanation:

edg 2020

tatuchka [14]3 years ago

3 0

Answer: y=-0.6x^3- 1

Step-by-step explanation:

In the graph, first we must see the points where the line intersects the axis.

We can see that it goes throug the point (0, -1)

Now, of the given options the only two that are 0 when x is -1, are:

f1(x) =y = 0.6*x^2 - 1

f2(x) =y = -0.6x^3 - 1

We also can see that for all the positive values of x, y has a negative value, so let's value bot functions in x = 2, and see what happens.

f1(2) = 0.6*4 - 1 = 1.4

f2(2) = -0.6*8 - 1 = -5.8

so the correct option is

y=-0.6x^3- 1

You might be interested in

-1=3(w+14)-7 equation

tankabanditka [31]

-1=3(w+14)-7
Use distributive property
-1=3w+42-7
Subtract 7 from 42
-1=3w+35
Subtract 35 from both sides
-36=3w
Divide 3 on both sides
Final Answer: -12=w

7 0

3 years ago

Read 2 more answers

PLS HELP I WILL GIVE BRAINLIEST PLS

Serhud [2]

Answer:

Step-by-step explanation:

x represents the amount of guests going to the birthday party, with the amount of money per guest being 12. You would multiply those two together, but as we do not know the total amount of guests, we keep it as a variable. 125 is the amount before the guests even know about the party, so therefore, you would need to use that equation.

6 0

3 years ago

there are three runners in a race. There will be a first place and a second place prize awarded and how many different ways can

Goshia [24]

Answer: 6

Step-by-step explanation: There are three runners in a race

Each person can get first or second place prize.

First chance :3 people x 1st chance =3 chances

Second chance: 3 people x 2nd chance =3 chances

3+3=6 chances

8 0

3 years ago

Stefan bought 3 hamburgers and 4 fries for a total cost of $26.50.

Blizzard [7]

Step-by-step explanation:

system of Linear Equations 2 variables

hamburger = x

fries = y

Stefan

3x + 4y = $26.5

Nancy

4x + 2y = $29.5

elimination

3x + 4y = $26.5 | ×1 |

4x + 2y = $29.5 | ×2 | -

3x + 4y = $26.5

8x + 4y = $59. -

-5x = $-32,5

x = $-32,5 ÷ -5

x = hamburger = $6.50

I hope this help

4 0

3 years ago

Filipo is building a rectangular sandbox . The length of the sandbox is 1 foot longer than twice the width of the sandbox .the p

Alla [95]

Answer:

Part A : D.) $2w + 2(2w+ 1) = 29$

Part B : Length of the sandbox is 10 feet.

Step-by-step explanation:

Given,

Perimeter = 29 ft

We need to find the equation for the perimeter and also the length of the sandbox.

Solution,

Let the width of the sandbox be 'w'.

Now as per question said;

The length of the sandbox is 1 foot longer than twice the width of the sandbox.

So we can say that;

Length = $2w+1$

Now we know that the perimeter is equal to the sum of twice of length and width.

framing in equation form, we get;

Perimeter = $2(2w+1)+2w$

we have given the perimeter, so on substituting the value, we get;

$29=2(2w+1)+2w$

Hence The equation used to find the width is $29=2(2w+1)+2w$ .

Now we solve for 'w'.

Applying distributive property, we get;

$4w+2+2w=29\\\\6w+2=29$

Subtracting both side by '2' we get

$6w+2-2=29-2\\\\6w=27$

Dividing both side by 6 we get;

$\frac{6w}{6}=\frac{27}{6}\\\\w=4.5\ ft$

Width of the sandbox = 4.5 ft

Length of the sandbox = $2w+1=2\times4.5 +1 = 9+1=10\ ft$

Hence Length of the sandbox is 10 feet.

3 0

3 years ago