Suppose a triangle reflects over the y-axis. Which describes how the transformation affects the coordinates of the vertices?
2 answers:
Answer: OPTION A.
Step-by-step explanation:
By definition:
- When you reflect a figure, you flip it over a line of reflection, then, both figures will be in opposite directions.
- The image (which is the reflection) and the pre-image will have the same shape ad size.
- If a figure is reflected over the y-axis, then the sign of the x-coordinate is changed.
Keeping the above on mind, you can conclude that when a triangle is reflected over the y-axis the coordinates of the vertices are afectted as following:
- The y-coordinate is not changed.
- The sign of the x-coordinate is changed.
Then:
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<h3>The equation represents the total amount Emma earns at the event is y = 10x</h3>
<em><u>Solution:</u></em>
Given that,
<em><u>The total amount Emma earns, y, is proportional to the number of bracelets, x, she sells</u></em>
Where,
y is the total amount Emma earns
x is the number of bracelets
k is the cost of each bracelet
<em><u>Emma earns $10 for each sold bracelet</u></em>
Therefore, k = 10
Thus, eqn 1 becomes,
<h3>y = 10x</h3>Thus the equation represents the total amount Emma earns at the event is found