Answer:
-1
Step-by-step explanation:
4x-8y=15
4x-8y-4x=15-4x
-8y=15-4x
-8y/-8=15-4x/-8
y=-1 7/8+1/2x
slope is -1 7/8
the angle from the horizontal upward to an object
3x + 7 = 1 3
3x = 13 - 7
3x = 6
x = 6/3
x = 2
