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3 years ago

5

How do you graph equations

1 answer:

Sav [38]3 years ago

7 0

Yes, so start by solving for y by subtracting everything else to the opposite side of the = from y.

1. y = 5 - x
2. y = x - 1

Now that we have our two equations in point-slope form, we can create graphs.

Our point-slope form is y = mx + b where m = slope of line and b = y-intercept.

The slope of equation 1. is -1 and the slope of equation 2. is 1

The y-intercept (how much the line goes up or down on the y-axis) for equation 1. is 5 and the y-intercept of equation 2. is -1

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Find the length of the unknown side.<br> 25 cm<br> 15 cm

AleksandrR [38]

Answer:

b = 20 cm.

Step-by-step explanation:

<u>Define and explain:</u>

This is a right triangle, so the Pythagorean Theorem applies.

The Pythagorean Theorem states that the sum of the squared legs will equal the squared length of the hypotenuse.

The legs of a triangle are the sides that form the right angle.

The hypotenuse is the longest side; the hypotenuse is always diagonal from the small square indicating a right angle.

<u>Solve:</u>

$a^2+b^2=c^2$

$a,b-legs$

$c-hypotenuse$

$15^2+b^2=25^2$

$225+b^2=625$

$625-225=400$

$b^2=400$

$b=20$

<u>Conclude:</u>

Therefore, the length of the unknown side is 20 centimeters.

3 0

3 years ago

A, B, and Care coplanar.<br> True<br> False

Allushta [10]

B I think hopefully! :)

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3 years ago

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A playing field is rectangular with a length of 100 yards and a width of 53 yards, 1 foot. If a player runs diagonally across t

musickatia [10]

First convert yards to feet.

1 yard = 3 feet.

100 x 3 = 300 feet long.

53 x 3 = 159 + 1 = 160 feet wide.

Now use the Pythagorean theorem to find the diagonal.

x^2 = 300^3 + 160^2

x^2 = 90000 + 25600

x^2 = 115600

x = √115600

x = 340 feet

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3 years ago

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scoundrel [369]

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3 years ago

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