Question

1. which of the following transformations is a reflection? 1 point mark only one oval. rotating a figure 90° around a point flipping a figure over a line sliding a figure along the plane enlarging a figure 38. a triangle is reflected over the y - axis. if a vertex is at (5,2), its image is: 1 point mark only one oval. (-5,2) (5,-2) (-5,-2) (2,5) 39. a rectangle is reflected over the line y = x. which of the following is true about the image? * 1 point mark only one oval. the rectangle is rotated 90° the rectangle is flipped along the line y = x the rectangle is slid horizontally the rectangle is unchanged

Explanation:

Step1: Define reflection

Reflection is flipping a figure over a line.

Step2: Analyze 37

Rotating is turning, sliding is translation, enlarging is dilation. Flipping a figure over a line is reflection.

Step3: Analyze 38

When reflecting a point $(x,y)$ over the y - axis, the rule is $(-x,y)$. For point $(5,2)$, its image is $(-5,2)$.

Step4: Analyze 39

Reflecting a figure over the line $y = x$ means flipping the figure along the line $y = x$.

Answer:

1. Flipping a figure over a line
2. $(-5,2)$
3. The rectangle is flipped along the line $y = x$