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Please help me u also need to plot the points

Please help me u also need to plot the points-example-1
User Sergeyne
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1 Answer

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The graph of the function shows a horizontal line at y = 1. This means that the function is a constant function with a value of 1. Therefore, coordinates of
$P'$ under the transformation
$T_(-4,0) \circ r_(m)$ is (-3,1).

The graph of the function shows a horizontal line at y = 1.

This means that the function is a constant function with a value of 1.

Therefore, for any input value x, the output value of the function will be 1.

The transformation
$T_(-4,0)$ is a translation of 4 units to the left.

The transformation
$r_(m)$ is a reflection across the line
$y = mx$.

To find the coordinates of
$P'$ under the transformation
$T_(-4,0) \circ r_(m)$, we first reflect P across the line y =
mx$.

The line
$y = mx$ passes through the point P, so
$m = 1$.

Therefore, the reflection of P across the line
$y = mx$ is the point P' at
$(1,1)$

Next, we translate
$P'$ 4 units to the left.

This gives us the coordinates of P' under the transformation
$T_(-4,0) \circ r_(m)$, which is
$(-3,1)$.

Here is a more detailed explanation of each step:

1. **Reflection across the line
$y = mx$:**

To reflect a point
$(a,b)$ across the line
$y = mx$, we first find the equation of the perpendicular line that passes through
$(a,b)$.

The slope of the perpendicular line is
$-(1)/(m)$, so the equation of the perpendicular line that passes through
$(a,b)$ is
$y = -(1)/(m)x + b$.

We then find the point of intersection of the perpendicular line and the line y = mx.

The x-coordinate of the point of intersection is the solution to the equation
$-(1)/(m)x + b = mx$.

Solving for x, we get
$x = (bm)/(m^2 + 1)$.

The y-coordinate of the point of intersection is then found by substituting
$x = (bm)/(m^2 + 1)$ into the equation y =
v.

This gives us
$y = (bm^2)/(m^2 + 1)$.

Therefore, the reflection of the point
$(a,b)$ across the line
$y = mx$ is the point
$\left( (bm)/(m^2 + 1), (bm^2)/(m^2 + 1) \right)$.

2. Translation:

To translate a point
$(a,b)$ by
$(h,k)$, we simply add
$h$ to the x-coordinate and
$k$ to the y-coordinate. This gives us the coordinates of the translated point, which is
$(a + h, b + k)$.

Therefore, to translate the point
$(a,b)$ by
$(-4,0)$, we add
$-4$ to the x-coordinate and 0 to the y-coordinate. This gives us the coordinates of the translated point, which is (a - 4, b).

Conclusion:

The coordinates of
$P'$ under the transformation
$T_(-4,0) \circ r_(m)$ is (-3,1).

User Nick Young
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8.4k points