Math 2 Final Exam Review Frequently Tested Actual Questions With Correct Answers

MATH 2 FINAL EXAM REVIEW FREQUENTLY TESTED
ACTUAL QUESTIONS WITH CORRECT ANSWERS

Question 1.
Rigid Transformations vs. Non-Rigid Transformations


ANSWER
rigid = shape stays the same size (translations, reflections, rotations)
non-rigid = shape changes size (dilation)



Question 2.
Coordinate Rule for: reflection across x-axis


ANSWER
(x,y) to (x,-y)



Question 3.
Coordinate Rule for: reflection across y-axis


ANSWER
(x,y) to (-x,y)



Question 4.
Coordinate Rule for: reflection across y = x


ANSWER
(x,y) to (y,x)



Question 5.
Coordinate Rule for: reflection across y = -x


ANSWER
(x,y) to (-y,-x)






,Question 6.
dilation formula


ANSWER
k: scale factor (x,y) to (kx,ky)



Question 7.
Coordinate Rule for: rotation 90˚ clockwise/270˚ counter clockwise


ANSWER
(x,y) to (y,-x)



Question 8.
Coordinate Rule for: rotation 180˚


ANSWER
(x,y) to (-x,-y)



Question 9.
Coordinate Rule for: rotation 270˚ clockwise/90˚ counter clockwise


ANSWER
(x,y) to (-y,x)



Question 10.
Triangle sum theorem


ANSWER
m<A + m<B + m<C = 180˚






,Question 11.
Exterior angle theorem


ANSWER
m<1 = m<3 + m<4 exterior angle= the sum of 2 angles not adjacent to the exterior angle




Question 12.
right triangle formula


ANSWER
a² + b² = c²






, Question 13.
Trig Ratio for: sin(angle)


ANSWER
opposite / hypotenuse




Question 14.
Trig Ratio for: cos(angle)


ANSWER
adjacent / hypotenuse




Question 15.
Trig Ratio for: tan(angle)


ANSWER
opposite / adjacent