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2 years ago

Y=9x is y a function of x

Mathematics

1 answer:

kap26 [50]2 years ago

3 0

Answer:

yes

Step-by-step explanation:

The relation gives a 1-to-1 mapping between values of x and values of y, so it meets the requirement for a function.

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Where is the blue dot on the number line?

Daniel [21]

Answer:

Near 3.2

Step-by-step explanation:

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2 years ago

Exploring the graph of y equals cosine Theta

irga5000 [103]

Answer: see below

Step-by-step explanation:

The coordinates on the Unit Circle are (cos, sin). Since we are focused on cosine, we only need to focus on the left side of the coordinate. The cosine value (left side) will be the y-value of the function y = cos x

Use the quadrangles (angles on the axes) to represent the x-values of the function y = cos x.

Quadrangles are: 0°, 90°, 180°, 270°, 360° (360° = 0°)

Together, the coordinates will be as follow:

$\boxed{\begin{array}{c||c|c||c}\underline{(cos,sin)}&\underline{x=angle}&\underline{y=cosx}&\underline{\quad (x,y)\quad}\\(1,0)&0^o&1&(0^o,1)\\(0,1)&90^o&0&(90^o,0)\\(-1,0)&180^o&-1&(180^o,-1)\\(0,-1)&270^o&0&(270^o,0)\\(1,0)&360^o&1&(360^o,1)\end{array}}$

8 0

2 years ago

Jenny wants to paint the ceiling of her restaurant. the ceiling is in the shape of a square. its side lengths are 44 feet. suppo

inysia [295]

First we need to find the square footage of her ceiling, since it's a square just multiply the side by the side: 44•44=1936. Now divide the square feet by how many feet each can can paint: 1936/242=8. Jenny would need exactly 8 cans of paint to paint her ceiling :)

8 0

3 years ago

Which of the following equations describes the line shown below? Check all that apply.

Igoryamba

Answer:

Correct options are F and D.

Step-by-step explanation:

First, the slope. 5-(-5)/-4-1

This can be simplified to 10/-5, or -2.

Y intercept: (0, -3).

Slope intercept form: y=-2x-3

Point slope: y-5=-2(x+4) or y+5=-2(x-1)

7 0

2 years ago

How can you solve x-8y=40?

OLga [1]

$Simplifying
x + -8y = 40

Solving
x + -8y = 40

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '8y' to each side of the equation.
x + -8y + 8y = 40 + 8y

Combine like terms: -8y + 8y = 0
x + 0 = 40 + 8y
x = 40 + 8y

Simplifying
x = 40 + 8y$

8 0

2 years ago

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