Angle b will be 34 degrees because angle b and the other angle that is 34 degrees are vertical angles!

We're given that
and
, and want to find
.
By the chain rule, we have

and


Then

(because the point
corresponds to
)

Now, assuming is a vertical parabola, so the squared variable is the "x", let's do some checking.
Answer:
1.39285714286
Step-by-step explanation: