Question

use the graph of y=sin0 to find the value of sin 0 for each value of 0 270°. answers -0.4, -0.8, -0.6, -1 please help ASAP

Answer 1

we have that
y=sin O
for O=270°
find the value of sin O

we know that
270 degrees --------> convert to radians-------> is equal to 3pi/2

using a graph tool
see the attached figure

the value of sin O for O=3pi/2  is -1

the answer is
-1

Answer 2

Refer to the image, the 270 degrees corresponds to 3/2 pi. 

Based on the graph, the value of sin(270) is -1.

So, the answer is -1.