Step-by-step explanation:
well, the arcs WS and ST together are the full half-circle and therefore 180°.
that means
5x + 37 + 3x - 9 = 180
8x + 28 = 180
8x = 152
x = 19
The graphs of the two equation are attache. The red curve represents the graph of the equation

while the blue curve represents the graph of the equation

.
Answer:
y=24x
Step-by-step explanation:
(48-24)/(2-1)=24/1
24=24(1)+b
24=24+b
b=0