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2 years ago

Percy plotted the points (5,6)

Mathematics

2 answers:

Ann [662]2 years ago

6 0

Answer:

any number with the y-axis remaining 6

for example: 1,6 ; 3,6 ; 6,6 ; 7,6 ; and so on until the grid ends.

Step-by-step explanation:

any points with the same y-axis will be on the same line.

Annette [7]2 years ago

3 0

Answer:

1,6 and 6,6

Step-by-step explanation:

since they are on the same y-axis, changing the x-value shouldn't matter.

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The graph of the function f(x) = ax^2 + bx + c has vertex at (0, 2) and passes through the point

Ann [662]

Answer:

Step-by-step explanation:

You need to use vertex form of a quadratic to solve this.

Consider the vertex to be $(h,k)$

Another way of representing a quadratic is in "vertex form":

$f(x) = a(x-h)^2+k$

Now all you have to do is solve for a. You know that the vertex is $(0,2)$ and you have know the point of $(1,8)$ . Now, all you have to do is plug in these values and solve for a.

$8 = a(1-0)^2+2\\8=a(1)^2+2\\8=a+2\\a=6$

Now you know the equation is $f(x) = 6(x-0)^2+2$ , but you need it in quadratic form. All you have to do is solve is distribute the 6:

$6x^2+2$

You get:

a = 6

b = 0

c = 2

Please mark this as brainliest if it satisfies your question

7 0

2 years ago

A rectangle floor is 7 yards long and 4 yards wide. what is the area of the floor in square feet?

timofeeve [1]

Just multiply my friend

8 0

2 years ago

Explain why sin^-1(sin(3pi/4))does not equal 3pi/4 when y=sin x and y=sin^-1 x are inverses.

Fofino [41]

Because they're not inverses, not exactly. $\sin x$ is not invertible on its entire domain because it's not one-to-one. There are infinitely many values of $x$ such that $\sin x=0$ , for example.

The standard function $\sin^{-1}x$ has a domain of $-1\le x\le1$ and outputs values between $-\dfrac\pi2$ and $\dfrac\pi2$ . This means that its inverse, $\sin x$ , is indeed its inverse as long as $-\dfrac\pi2\le x\le\dfrac\pi2$ .

$\dfrac{3\pi}4$ is larger than $\dfrac\pi2$ and thus does not fall in the "invertible part" of the domain of $\sin x$ . We have

$\sin\dfrac{3\pi}4=\dfrac1{\sqrt2}$

which is a value between -1 and 1, so that

$\sin^{-1}\left(\sin\dfrac{3\pi}4\right)=\sin^{-1}\left(\dfrac1{\sqrt2}\right)=\dfrac\pi4$

If we wanted to recover $\dfrac{3\pi}4$ , we'd have to redefine $\sin^{-1}x$ or define a new inverse function that works on a different branch of the domain of $\sin x$ .

7 0

2 years ago

What are the perimeter and area of a rectangle with a length of 20 in and a width of 15 in

Brilliant_brown [7]

Perimeter is 2 times the length plus 2 times the width.

Area is length times width.

Perimeter = (2 x 20) + (2 x 15) = 40 + 30 = 70 inches.

Area = 20 x 15 = 300 square inches.

5 0

2 years ago

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