Step-by-step explanation:
horizontal lines will have a gradient(m) of 0
so if m=0 , the line is horizontal
formula to find m:
m=y2-y1 / x2-x1
insert coordinates into formula

As m=0 , therefore it is a horizonta line.
hope this helps..
Answer:
4.5
Step-by-step explanation:
You can change 1/4 to a decimal and then multiply 2×2.25
Answer:
£280
Step-by-step explanation:
238/0.85
Answer:
-15.3, -15.1, -12.3, -11.4, -11.4, 19.6
Step-by-step explanation: