Reflecting over the x axis means to perform the following tranformation:
So, you maintain the x coordinate, and change the sign of the y coordinate. The vertices become
Translating 3 units to the left means to perform the following transformation:
So, you maintain the y coordinate, and decrease the x coordinate by 3. The vertices become
So, as you can see, after these two transformation, the vertices A, B and C become A', B' and C'.
The line is vertical, so the slope is infinite
Step-by-step explanation:
Given two points with coordinates and
, the slope of the line passing through the two points is given by the equation
In this problem, the coordinates of the two points are:
and
which means:
Substituting all these values into the equation of m, we find the slope of the line:
The slope is infinite: this is because the line is vertical.
Learn more about slope of a line:
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