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Virty [35]
3 years ago
6

. Which function's graph has a vertex at (-1, -3) and contains the point (2, 15)? HELPPP PLEASEE

Mathematics
1 answer:
AlexFokin [52]3 years ago
5 0

Answer:

2(x+1)²-3

Step-by-step explanation:

Using the vertex formula we can write the follwoing equation

y=a(x+1)²-3

We need to solve for a

we know that when x= 2 y = 15

So we can write

15=a(2+1)²-3

15=9a-3

18=9a

a=2

Which means our final equation is

2(x+1)²-3

in standard form (just in case)

2x²+4x-1

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A triangle has two angles that each measure 50° What is the measure of the third angle?
Lorico [155]

Answer:

80 or 2

Step-by-step explanation:

triangles = 180degrees

50+50+x=180

x=80

Hope this helps plz hit the crown :D

6 0
3 years ago
HELP ASAP PLEASE!!<br> Will mark brainliest
Ann [662]
4 is 22 , 5 is 50 , 6 is 160 , 7 is 8 , 8 is 3 , 9 is 8 , 10 is 132 , 11 is 10.5 and 12 is 8
7 0
3 years ago
Read 2 more answers
Please help me! which ones are the right ones , pls and ty
Leya [2.2K]

Answer:

-5/6=-5/-6=- 5/6

- 7/2=-7/-2=-7/2

Step-by-step explanation:

8 0
3 years ago
Please answer !!!!! Will give brainliest!!!!
zysi [14]
The answer is 1)B 2)C 3)F
7 0
3 years ago
Will mark brainiest for simplest and most coherent answer. What does it mean if an x (input) or y (output) value doesn't make se
Maksim231197 [3]

Answer:

I tried to answer but I still would like to know what doesn't make sense.

Considering the identity:

\sec^2\theta-\tan^2\theta=1 \implies |\sec\theta|\geq1

$\forall\;\theta\in\mathbb{R}-\{(2n+1)\frac{\pi}{2}, n\in\mathbb{Z} \}$

The identity is true whenever both sides are defined. It is not supposed to hold the values when we have division by zero, because it is undefined.

If the value doesn't make sense, it is probably not a function, or it is undefined by the given value of x.

Let's go back to the definition of function again:

A function relates a set of inputs and a set of allowable outputs where each input is related to only one output. It basically defines the relation of ordered pairs.

Hope it helped you a bit.

8 0
3 years ago
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