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3 years ago

15

What are the coordinates of the point (10,-4) if it is reflected across the y-axis

2 answers:

grigory [225]3 years ago

6 0

the answer would be -10,4 because when something is reflected over the y axis the x-value becomes the opposite sign. when something is reflected over the x-axis then the y-value becomes the opposite

pashok25 [27]3 years ago

5 0

Answer:

(10, 4)

Step-by-step explanation:

The easiest way to understand it is to draw it. Please notice that the distance from Y axis is still 4, the point is just at the other side of the axis.

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Jayden and Sheridan both tried to find the missing side of the right triangle. A right triangle is shown. One leg is labeled as

stellarik [79]

Answer:

Sheridan's Work is correct

Step-by-step explanation:

we know that

The lengths side of a right triangle must satisfy the Pythagoras Theorem

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

where

a and b are the legs

c is the hypotenuse (the greater side)

In this problem

Let

$a=7\ cm\\c=13\ cm$

substitute

$13^{2}=7^{2}+b^{2}$

Solve for b

$169=49+b^{2}$

$b^{2}=169-49$

$b^{2}=120$

$b=\sqrt{120}\ cm$

$b=10.95\ cm$

we have that

<em>Jayden's Work</em>

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

$a=7\ cm\\b=13\ cm$

substitute and solve for c

$7^{2}+13^{2}=c^{2}$

$49+169=c^{2}$

$218=c^{2}$

$c=\sqrt{218}\ cm$

$c=14.76\ cm$

Jayden's Work is incorrect, because the missing side is not the hypotenuse of the right triangle

<em>Sheridan's Work</em>

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

$a=7\ cm\\c=13\ cm$

substitute

$7^{2}+b^{2}=13^{2}$

Solve for b

$49+b^{2}=169$

$b^{2}=169-49$

$b^{2}=120$

$b=\sqrt{120}\ cm$

$b=10.95\ cm$

therefore

Sheridan's Work is correct

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3 years ago

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Allushta [10]

Answer:

why you color out the first part? what exctly is the question?

Step-by-step explanation:

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3 years ago

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stiv31 [10]

14/15 - 5/12

Common denominator is 60.

$\frac{4 * 14}{4 * 15} - \frac{5 * 5}{5 * 12}$

56/60 - 25/60

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3 years ago

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A line passes through (1, 8) and is perpendicular to the graph of y = 2x+1. What equation

Genrish500 [490]

Answer:

y = -1/2x + 17/2

Explanation:

y = 2x + 1 is in slope intercept form

in the equation y = mx+b, m is the slope, and in the equation m =2

the slope of a perpendicular line is the negative reciprocal of the other slope.

slope of perpendicular= -1/m = -1/2

y = -1/2x + b

now find b by substituting in (1,8) into the partial equation

8 = -1/2 + b

b = 8+ 1/2

b = 17/2

please give thanks :) hope this helps

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Svet_ta [14]

Answer:

Step-by-step explanation:

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3 years ago

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