Answer:
1. Not a function.
2. This is a function.
3. This is a function.
Step-by-step explanation:
1. 13 maps on to 4 and -4 so not a function.
2 and 3 - these both pass the vertical line test so they are functions.
Vertically opposite angles formed by two lines intersecting each other are equal.
<h3>What is a transversal?</h3>
A transversal is a line that intersects two or more two lines at two or more two distinct points.
We know when two straight lines intersect each other their vertically opposite angles are of equal measure.
Given, m∠1 + m∠2 = 180° and m∠2 + m∠3 = 180°.
Therefore we can equate these two expressions.
m∠1 + m∠2 = m∠2 + m∠3.
Or,
m∠1 + m∠2 - m∠2 = m∠3.
∴ m∠1 = m∠3.
learn more about the transversal lines here :
brainly.com/question/17432060
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Yes, if you solve the problem in the parenthesis, then you add the two solutions together and you got ur final solution
