Answer:0
Step-by-step explanation:
5-5= 0
The positive sign times the negative sign equals to a negative sign
Answer:
The distance between the two points is 8 units
Step-by-step explanation:
In the given figure
∵ The coordinates of the 2 points are (4, 5) and (4, -3)
∴ x1 = 4 and y1 = 5
∴ x2 = 4 and y2 = -3
∵ Their x-coordinates are equal
→ That means the distance between them is vertical
∴ The length of the vertical distance between two points is
the difference between the y-coordinates of the points
∵ The distance between them = Iy2 - y1I
∵ y1 = 5 and y2 = -3
∴ The distance between them = I-3 - 5I
∴ The distance between them = I-8I
→ Remember absolute value gives always positive values
∴ The distance between them = 8 units
∴ The distance between the two points is 8 units
Answer:
Purple line: 4
Red dashed line: 2
Blue line: 1/2
Step-by-step explanation:
The purple line is the steepest line, therefore it has the biggest constant of proportionality or slope. Since 4 is the biggest number among the others, we attribute it to the purple line (the one with the point C on it).
Think of it this way:

here
so 
The greater a is, the greater y is. So for any value of x, y will be become bigger and bigger if we increase the value of a.
Take for example this one:

Take
therefore
Now take
and take
therefore
When we increased this constant of proportionality, as you can see from 2 to 4, the value of y increase from 4 to 8.
Hope this is helpful. Think of it really carefully, and I'm sure you'll grasp the concept.