Mathematics: What is the ratio of chickens to cows 12:18

What is the ratio of chickens to cows 12:18 - id121811020277, juliannxkim

jlroy1971

05.04.2020

Given:

A quadrilateral QRST.

To find:

The coordinates of Q' after the transformation of $(T_{}\circ R_{x-axis})(QRST)$ .

Solution:

From the given figure, it is clear that

Q=(1,3)

$(T_{}\circ R_{x-axis})(QRST)$ means the figure QRST first reflected across the x-axis, then translated by $T_{}$ .

Figure QRST reflected across the x-axis, then

$(x,y)\to (x,-y)$

$Q(1,3)\to Q_1(1,-3)$

After that, it is translated by $T_{}$ .

$(x,y)\to (x-1,y+2)$

$Q_1(1,-3)\to Q'(1-1,-3+2)$

$Q_1(1,-3)\to Q'(0,-1)$

Therefore, the coordinates of Q' are (0,-1).

Note: All options are incorrect.

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