Answer:
Step-by-step explanation:
If a given variable varies inversely with another variable, an increase in the value of the given variable would cause a corresponding decrease in the value of the other variable. Also, a decrease in the value of the given variable would cause a corresponding increase in the value of the other variable.
If y varies inversely with x, we would introduce a cost of variation, k so that the expression becomes
y = k/x
When y = 0.25, x = 8
Substituting into the expression above, it becomes
0.25 = k/8
k = 0.25 × 8
k = 2
The inverse variation function is
y = 2/x
Answer:
(2, 6)
Step-by-step explanation:
coordinates work by (x, y)
so if up or down = y
then 10 - 4 = 6
therefore the answer is (2, 6)
180% = $270
60% = $90
10% = $15
100% = $150
Original price = $150
