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3 years ago

15

If the trapezoid below is reflected across the x-axis, what are the coordinates of B?

2 answers:

aliina [53]3 years ago

6 0

The coordinates of B would be C. (4, -8)

I got this because when reflecting over the x axis, the only value that changes is the y value. If you graph it out, the y value is the opposite while the x is the same.

Hope this helps!

Alexandra [31]3 years ago

3 0

Answer:

The coordinates of B would be C. (4, -8)

Step-by-step explanation:

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How do you rewrite this problem in slope-intercept form

Sergio039 [100]

Solution

-6x - 3y = 9 Add 6x to both sides

-6x + 6x - 3y = 9 + 6x

-3y = 9 + 6x Or more conventionally

-3y = 6x + 9 Divide by - 3

y = 6x/-3 + 9/-3

y = - 2x - 3

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3 years ago

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$5y+2x = -7~~~~~......(i)\\\\y = -2x +5 ~~~~~~.....(ii)\\\\(i) -(ii):\\\\5y+2x -y = -7-(-2x+5)\\\\\implies 4y +2x = -7 +2x -5\\\\\implies 4y +2x -2x = -12\\\\\implies 4y = -12\\\\\implies y = - \dfrac{12}4 = -3\\\\\\\text{Substitute}~ y=-3~ \text{in equation (ii):}\\\\\\-3 = -2x +5\\\\\implies 2x = 5 +3 \\\\\implies 2x = 8\\\\\implies x = \dfrac 82 =4\\\\\text{Hence,}~ x = 4$

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2 years ago

3)Please help with this question, WILL MARK BRAINLIEST + 10 POINTS!

ser-zykov [4K]

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3 years ago

Graph? Which is linear

tatuchka [14]

Answer:

Below

Step-by-step explanation:

1. Linear because it is of the form y = mx + b. The variable x is of the first degree.

The coefficient of x (1/3) ( = slope) is positive so it is increasing.

2. This is non-linear because the variable x is an exponent.

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3 years ago

Suppose that the relation S is defined as follows. S= {(4,9), (-9,4), (0, -9), (6, 6)} Give the domain and range of S. Write you

Shtirlitz [24]

Given:

The relation S is:

$S=\{(4,9),(-9,4),(0,-9),(6,6)\}$

To find:

The domain and range of S.

Solution:

If a relation is defined by the set of ordered pairs (x,y), then the domain is the set of x-values and range is the set of y-values.

Let R be a relation defined as $R=\{(x,y):x\in R,y\in R\}$ , then $Domain=\{x:x\in R\}$ and $Range=\{y:y\in R\}$ .

The given relation is:

$S=\{(4,9),(-9,4),(0,-9),(6,6)\}$

Here, x-values are 4,-9,0,6 and the y-values are 9,4,-9,6.

So, the domain and range of the given relation S are

$Domain=\{-9,0,4,6\}$

$Range=\{-9,4,6,9\}$

Therefore, $Domain=\{-9,0,4,6\}$ and $Range=\{-9,4,6,9\}$ .

8 0

3 years ago