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3 years ago

What are the 2 criteria for lines to represent proportional relationships?

Mathematics

1 answer:

stepan [7]3 years ago

5 0

Answer:

one of the quantities is a constant multiple of the other, or equivalently if they have a constant ratio

Step-by-step explanation:

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The slope of the line below is 2. Which of the following is the point-slope form of the line? the x is 1 and the y is -1

sukhopar [10]

The point slope form would be y+1=m(x-1)

5 0

4 years ago

Read 2 more answers

Please help I wanna get an a :(

kramer

Answer:

Graph C

Step-by-step explanation:

Point T is located on Graph C at T(1, 7). To help, (x, y) = count over however many spaces horizontally, then count however many spaces vertically.

It will always be this way.

4 0

3 years ago

The perimeter of a triangle is 84m. the longest side of the triangle is 7m less than twice the length of the shortest side, x. t

Masja [62]

Side1 + side2 + side 3 = 84

side1 is the shortest side, and its length is x.
side2 is the middle side, and its length is x + 7
side3 is the longest side, and its length is 2x - 7

x + x + 7 + 2x - 7 = 84

4x = 84

x = 21

side1 = x = 21
side2 = x + 7 = 21 + 7 = 28
side3 = 2x - 7 = 2(21) - 7 = 42 - 7 = 35

The length of the sides are 21 m, 28 m, and 35 m.

5 0

3 years ago

Sin^2(x/2)=sin^2x Find the value of x

Veronika [31]

$\sin^2\dfrac x2=\sin^2x$
$\dfrac{1-\cos x}2=1-\cos^2x$
$1-\cos x=2-2\cos^2x$
$2\cos^2x-\cos x-1=0$
$(2\cos x+1)(\cos x-1)=0$
$\implies\begin{cases}2\cos x+1=0\\\cos x-1=0\end{cases}$ $\implies\begin{cases}\cos x=-\frac12\\\cos x=1\end{cases}$

The first case occurs in $0\le x$ for $x=\dfrac{2\pi}3$ and $x=\dfrac{4\pi}3$ . Extending the domain to account for all real $x$ , we have this happening for $x=\dfrac{2\pi}3+2n\pi$ and $\dfrac{4\pi}3+2n\pi$ , where $n\in\mathbb Z$ .

The second case occurs in $0\le x$ when $x=0$ , and extending to all reals we have $x=2n\pi$ for $n\in\mathbb Z$ , i.e. any even multiple of $\pi$ .

6 0

3 years ago

7p+5q+4p-2q what is the result of combining the like terms

Ahat [919]

Answer:

11p+7q

Step-by-step explanation:

3 0

3 years ago