QUESTION IMAGE
Question
for questions 1-8, identify the line of ref
- point d (9, -8) is
reflected to d’ (9, 8).
- a figure is
from quadr
quadrant iii
y axis
x a
- a figure is reflected
from quadrant i to
quadrant ii.
6.
- reflect the figure shown over
record the coordinates of the i
graph with points a and t
Question 1:
Step1: Analyze coordinates of D and D'
Point \( D(9, -8) \) and \( D'(9, 8) \). The x - coordinate remains the same (\( x = 9 \)), and the y - coordinate changes sign.
Step2: Determine the line of reflection
When reflecting a point \((x,y)\) over the x - axis, the image is \((x, -y)\), and when reflecting over the y - axis, the image is \((-x,y)\). Here, since \( y \) changes sign and \( x \) stays the same, the line of reflection is the x - axis (the original answer "y axis" is incorrect). The rule for reflection over the x - axis is \((x,y)\to(x, -y)\) (in reverse here, from \((x,-y)\) to \((x,y)\), which is also a reflection over the x - axis).
Step1: Recall quadrant coordinates
In Quadrant I, points have \((+,+)\) coordinates, and in Quadrant II, points have \((-,+)\) coordinates.
Step2: Determine the line of reflection
For a point to go from Quadrant I \((x,y)\) to Quadrant II \((-x,y)\), the x - coordinate changes sign while the y - coordinate remains the same. This is the rule for reflection over the y - axis (\( x = 0 \)).
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x - axis