Answer:
slope-intercept formula -----> Y2-Y1/X2-X1
Step-by-step explanation:
X1= 2 X2= 0
Y1= -4 Y2= -4
-4+4/0-2=0
Answer:
the slope (or rise over run) is 2/3x, and the y intercept is -2
Step-by-step explanation:
In order to find the slope:
- subtract 2x from itself, cancelling it out. Do the same to the other side (-6).
- it should then look like this: 3y=-2x+-6
- next divide 3 from y as well as from -2 and -6.
- it should then look like this: y=2/3x+-2
Answer:
cos (
) = 
Decimal value: −0.9238795325...
Step-by-step explanation:
Write,
cos = cos 
= −cos 
Now using half angle formula, cos(x) = 2 cos²(
) − 1, we can write cos 
= 2
cos²() − 1
This means 
+ 1 = 2 cos²()
2 cos²() = 
cos²() = 
cos() = 
Simplify,
= 
= 
Hence,
cos () = −cos () =
It’s 70, 35+85=110 180-110=70
