Determine whether the graph below is that of a function by using the vertical-line test. If it is, use the graph to find (a)
its domain and range.
(b)
the intercepts, if any.
(c)
any symmetry with respect to the x-axis, y-axis, or the origin.
π−π/2π/2−π
1
-1

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte