2.5
,
21
8
,
3
√
25
,
π
,
√
19
2.5
,
21
8
,
25
3
,
π
,
19
You can tell if a graph represents a proportional relationship by identifying the y-intercept, or the point of the line that crosses the y-axis.
If the y-intercept is 0, then the relationship is proportional. This is called a direct relationship.
If the y-intercept is anything other than 0, then the relationship is not proportional. This is called an indirect relationship.
I hope this helps!
After 2 hours, there are 12 bacteria present.
Answer:
Step-by-step explanation:
Note that in this diagram, point A represents point X, point B represents point Y, and point C represents point Z.
From the diagram, it appears as if 
. To determine if this is the case, we can find the slopes of both segments.
Since these slopes are negative reciprocals, we know that they are perpendicular.
This means we can use the formula 
, where b is the base (XY) and h is the height (XZ).
- Note these are interchangeable.
Using the distance formula,
This means the area is 
