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3 years ago

How do you plot a linear graph

Mathematics

1 answer:

dlinn [17]3 years ago

4 0

Step-by-step explanation:

You can plot linear graph using two point (x1,y1) and (x2,y2), where x1, y1, x2 and y2 are real numbers.

using slope intercept form y = mx + b, where m is the slope and b is y-intercept.

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Factor (x^2-9) (x^2-16)

MrRissso [65]

Answer:

( x - 3 )( x + 3 ) ( x - 4 )( x + 4)

Step-by-step explanation:

( x^2 - 9 ) ( x^2 - 16 )

( x - 3 )( x + 3 ) ( x - 4 )( x + 4)

Hopefully this helps!

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2 years ago

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Write the equation of this line in y= mx + b form

KiRa [710]

Answer:

y=4

Step-by-step explanation:

Because it is a horizontal line, there is no slope the only thing that is there is the y intercept

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2 years ago

What is the Least Common Multiple (LCM) of 24 and 40?

sattari [20]

The answer would be 120 hope this helps!!

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3 years ago

The sum of the product of a number k and 4,<br> and a number m

Ratling [72]

Answer:

m + 4k

Step-by-step explanation:

The way the problem is written, you could also do this:

4k + m

I am joyous to assist you anytime.

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3 years ago

Jack is flying his kite . He runs 100 feet away from his house and lets out 45 feet of string . The angle of elevation from the

fiasKO [112]

Answer: 125.80 ft

Step-by-step explanation:

Asuming the described situation is as shown in the figure below, we need to find the distance $h$ between the kite and Jacks house, but first we need to find the $x$ , $y$ and then $d$ .

How?

We will use trigonometry, especifically the trigonometric functions sine and cosine:

For $y$ :

$sin(65 \°)=\frac{y}{45 ft}$ (1)

Where $y$ is the opposite side to the angle and $45 ft$ the hypotenuse.

Isolating $y$ :

$y=40.78 ft$ (2)

For $x$ :

$cos(65 \°)=\frac{x}{45 ft}$ (3)

Where $x$ is the adjacent side to the angle.

Isolating $x$ :

$y=19.017 ft$ (4)

Finding $d$ :

$d=x+100 ft$ (5)

$d=19.017 ft +100 ft$

$d=119.017 ft$ (6)

Now that we have found these values, we have to work with a bigger triangle, where the hypotenuse is the distance between the kite and Jack's house $h$ and the sides are the values calculated in (4) and (6).

So, in this case we will use the <u>Pithagorean theorem</u>:

$h^{2}=y^{2} +d^{2}$ (7)