
For

.
For

.

At

there's turning point, which is equal

.
Answer:
X=1550-10y
Step-by-step explanation:
X+10y=1550
Subtract 10y from each side
X+10y- 10y=1550-10y
X=1550-10y
A and 90-a is the measure of the two angles
a=90-a-6
2a=84
a=42
42° and 48°
Answer:
Nonlinear
Step-by-step explanation:
This is nonlinear because its parent function is y =
. The parent function of a linear equation is y = x.
I hope this helps :))