Answer:
-2
Step-by-step explanation:
y2 - y1 / x2 - x1
9 - 5 / -6 - (-4)
4 / -2
= -2
Answer:
225%
Step-by-step explanation:
We need to find the markup as a percentage of original.
Original price = $2
Markup = 6.5 - 2 = $4.5
So, percentage is:

Multiplied by 100 gives us percentage:
2.25 * 100 = 225%
Answer:
4.2 × 
Step-by-step explanation:
2.1 ×
× 2 × 
2.1 + 2 = 4.2
2 - 3 = - 1
4.2 × 
X+y=5
y=x/2 +2
We have to solve this system of equations:
we can solve by substitution method.
y=x/2 +2
x+(x/2 + 2)=5
2x+x+4=10 (lowest common multiplo =2)
3x=10-4
3x=6
x=6/3=2
y=x/2 +2 =2/2 +2=1+2=3
Then:
x=2 and y=3 ⇒(2,3)
Answer: the point is (2,3)