Answer:
-15
Step-by-step explanation:
process of elimination.
If two parallel lines are cut by a transversal, then each pair of consecutive interior angles is supplementary.
If two parallel lines are cut by a transversal, then each pair of alternate exterior angles is congruent.
If two parallel lines are cut by a transversal, then each pair of alternate interior angles is congruent.
If two parallel lines are cut by the transversal, then each pair of corresponding angles is congruent.
Answer:
f(x)=x^2+3
f(x+y)=(x+y)^2+3
this is done by replacing x with (x+y)
f(x+y)=x^2+2xy+y^2+3
therefore : f(x+y)= x^2+y^2+2xy+3
If you change the point's x-coordinate, the point will move either to the left or the right, depending on if the number you change is negative or positive.