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Pachacha [2.7K]
3 years ago
8

Please help its due in 1 hour

Mathematics
2 answers:
blsea [12.9K]3 years ago
4 0
Give Mcc the brainiest.
4vir4ik [10]3 years ago
3 0

Answer:

8= y=5

9= y=1.5

10= y=17

Step-by-step explanation:

brainliest plz

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(NO LINKS) I BEG U HALP FELLOW SMART PPL
bazaltina [42]

Answer: See the image below for the filled out table.

The other root is x = -2

===========================================================

Explanation:

The turning point is at (1, -45) which is the vertex. This is where the graph goes downhill, and then turns around to go uphill, or vice versa. Depending on the direction, the vertex is the lowest point or the highest point on the parabola.

We have (h,k) = (1,-45) as the vertex, so h = 1 and k = -45

y = a(x-h)^2 + k

y = a(x-1)^2 + (-45)

y = a(x-1)^2 - 45

Now plug in any other point from the table. You cannot pick (1,-45) or else you won't be able to solve for the variable 'a'. Let's go for (0,-40)

We'll plug x = 0 and y = -40 into the equation above to solve for 'a'

y = a(x-1)^2 - 45

-40 = a(0-1)^2 - 45

-40 = a(-1)^2 - 45

-40 = a - 45

a-45 = -40

a = -40+45

a = 5

Therefore, the equation for this parabola is

y = 5(x-1)^2 - 45

As a way to check, we can plug in something like x = -3 to find that...

y = 5(x-1)^2 - 45

y = 5(-3-1)^2 - 45

y = 5(-4)^2 - 45

y = 5(16) - 45

y = 80 - 45

y = 35

Which matches what the table shows in the first column. I'll let you verify the other columns. As you can probably guess at this point, we'll plug in the x values to get the corresponding y values.

So for x = -2, we get...

y = 5(x-1)^2 - 45

y = 5(-2-1)^2 - 45

y = 5(-3)^2 - 45

y = 5(9) - 45

y = 45 - 45

y = 0

The result of 0 here indicates we have a root at x = -2. This is the other x intercept. The x intercept already given to us was x = 4.

The rest of the table is filled out using the same idea. You should get what you see below.

3 0
3 years ago
Three friends go grocery shopping together, and each buys the same kind of strawberries. Akio buys 2 pounds (lb) and pays $1.50.
konstantin123 [22]

Answer:

it will be B

Step-by-step explanation:

because 1 lb is equal to .75 and the graph shows the exact process of if you were to keep adding .75

4 0
2 years ago
Read 2 more answers
¿Qué distancia recorre un móvil en 2 s cuando se le suelta de un edificio de 100 m de altura?
chubhunter [2.5K]

the answer is 50:::::::_::::::::

6 0
2 years ago
What are 6 7ths of 56
babunello [35]
56 divided by 7 = 8
8 multiplied by 6
=48
5 0
3 years ago
Find the product.<br> a 4(3a2 - 2a + 1)<br><br> (typed answers not selection)
Rus_ich [418]

Answer:

3a^6-2a^5+a^4

Step-by-step explanation:

Use the rules of indices to find the product.

One of the rules is that when we multiply indices that have the same base we add the powers. For example:

x^4 * x^5 = x^9

So to work out a^4(3a^2-2a+1) we need to follow this rule.

Let's expand the bracket:

a^4(3a^2-2a+1) = (a^4)(3a^2)+(a^4)(-2a)+(a^4)(1)

Let's simplify keeping in mind the rule we know.

(a^4)(3a^2)=3a^6

(a^4)(-2a) = -2a^5 - remember that a = a^1

(a^4)(1) = a^4

6 0
3 years ago
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