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3 years ago

State if each graph is continuous or discrete. then State whether it is a function

Mathematics

1 answer:

natta225 [31]3 years ago

8 0

Step-by-step explanation:

Discrete data can only have certain values. For example, if you roll a die, there are only 6 numbers you can get. Continuous data can have any value within a range.

Graphically, discrete data will appear as only points, where as continuous data appears as a line or curve.

So the top left and bottom right graphs are discrete. The top right and bottom left graphs are continuous.

To be a function, each x value can only have 1 y value. Graphically, we can check this using the "vertical line method". Imagine a vertical line (or use a ruler or straight edge) and move it from left to right. If it ever crosses the graph in two or more places, the graph is not a function.

Therefore, the graphs on the left are not functions, and the graphs on the right are functions.

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Simplify the product of

tankabanditka [31]

Answer:

Step-by-step explanation:

$(3+\sqrt{7} )(3-\sqrt{7} )\\\\Now we Can Use Identity (a^{2} -b^{2} =(a+b)(a-b)\\a=3 \\ b=\sqrt{7} \\\\3^{2}-\sqrt{7} ^{2} \\9-7=2$

Hope it helps Pls mark as Brainliest!!!

8 0

3 years ago

Which number line shows the correct placement of 25%,14 1 4 , and 12 1 2 ?

3241004551 [841]

Answer:

3.5

Step-by-step explanation:

25%=0.25

0.25*14=3.5

7 0

3 years ago

I need some help on my math test!!, I get to retake it but I need help with some of it:

Greeley [361]

Answer:

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = $\frac{1}{2}$ , thus

y = $\frac{1}{2}$ x + c ← is the partial equation

To find c substitute (- 4, - 9) into the partial equation

- 9 = - 2 + c ⇒ c = - 9 + 2 = - 7

y = $\frac{1}{2}$ x - 7 ← equation of line

7 0

3 years ago

What is the value of 2x3 + x2 – x when x = 3?

Bad White [126]

Answer:

Step-by-step explanation:

This is assuming that x2 means x to the power of 2 and that the x on the left is to represent multiplying. First, plug in all of the number to get 2*3+3^2-3.Using PEMDAS, you should solve the exponent to get 9. Then, multiply 2 by 3 to get 6. Add 6 to 9 to get 15. Subtract 2 to 15 to get 12.

TL;DR

2*3+3^2-3

6+9-3

15-3

7 0

3 years ago

Use the zero product property to find the solutions to the equation x^2-15x-100=0

7nadin3 [17]

Answer:

$x = 20$ or $x = -5$