1. it can be 2x+4 or -2x+4 (C)
2. 3x+6 (C)
3. x+1 (B)
All of the rays indicated coincide. The points lie on the same line or ray. For explanation, please refer to the attachment.
Answer:
3/2
Step-by-step explanation:
slope formula:
where y2= 7
y1=4
x2=9
x1=7
so

3/2
Hope this helps!