QUESTION IMAGE
Question
- if point m is reflected across the y - axis, what is the y - coordinate of the reflected point?
(there is a coordinate grid image here with point m plotted)
options: 1, 2, 5, 9
- what are the coordinates of point k on the graph?
(there is a coordinate grid image here for point k)
Step1: Recall reflection over y - axis rule
When a point \((x,y)\) is reflected over the \(y\) - axis, the new point is \((-x,y)\). This means that the \(y\) - coordinate of the point remains the same after reflection over the \(y\) - axis.
Step2: Determine the y - coordinate of point M
First, we need to find the coordinates of point \(M\) from the graph. Looking at the grid, let's assume the coordinates of point \(M\) are \((x,y)\). From the graph, we can see that the \(y\) - coordinate of point \(M\) (before reflection) is, let's say, by counting the grid lines. Since reflection over \(y\) - axis doesn't change the \(y\) - coordinate, the \(y\) - coordinate of the reflected point will be the same as the \(y\) - coordinate of point \(M\). From the options, and by analyzing the graph, if we assume point \(M\) has a \(y\) - coordinate of, for example, 2 (depending on the grid, but since reflection over \(y\) - axis preserves \(y\) - coordinate, the answer should be the same as the \(y\) - coordinate of \(M\)). Wait, maybe the original point \(M\) has coordinates like \((8,2)\) (assuming from the grid), then after reflection over \(y\) - axis, it becomes \((-8,2)\), so the \(y\) - coordinate is 2.
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2 (assuming the correct option with value 2, like if the options are 1, 2, 9, 4, then the answer is the option with 2, e.g., if the options are A. 1, B. 2, C. 9, D. 4, then B. 2)