Write and graph the inverse variation in which y = 8 when x = –4.
1 answer:
For this case we have that an inverse variation in a function is given by:
For this case, we must find the value of the constant k.
To do this, we substitute the values of x = -4, y = 8.
We have then:
Clearing k we have:
Substituting the value of k we have that the inverse variation is:
Note: see attached image.
Answer:
See attached image.
For this case, we must find the value of the constant k.
To do this, we substitute the values of x = -4, y = 8.
We have then:
Clearing k we have:
Substituting the value of k we have that the inverse variation is:
Note: see attached image.
Answer:
See attached image.
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Answer:
D. She can check to see if the rate of change between the first two ordered pairs is the same as the rate of change between the first and last ordered pairs.
Step-by-step explanation:
Find the rate of change between first two ordered pairs and the second two ordered pairs:
1. Points (2,4) and (3,9). Rate of change:
2. Points (3,9) and (4,16). Rate of change:
The rate of change for the linear function must the same for each two points on the graph of the function. In this case, the reate of change differs, so this function is not linear and correct option is D.
