Answer:
A number is positive if it is greater than or equal to zero. A number is negative if it is less than or equal to zero.
Answer: 1.1
Step-by-step explanation:
2.4 - 1.3 = 1.1
The midpoint of 85 and 90 is 87
Answer:
The ordinate of B exceeds the ordinate of A by 7
Step-by-step explanation:
Let
A(x1,y1),B(x2,y2)
where
x1 is the abscissa of A
x2 is the abscissa of B
y1 is the ordinate of A
y2 is the ordinate of B
we know that
![m=\frac{y2-y1}{x2-x1}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By2-y1%7D%7Bx2-x1%7D)
![m=2](https://tex.z-dn.net/?f=m%3D2)
so
-----> equation A
----> equation B
substitute equation B in equation A
therefore
The ordinate of B exceeds the ordinate of A by 7