Question

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Answer 1

Given-

=>The price of each depends on the number of ingredients used.

=> Minimum 5 ingredients and maximum of 10 ingredients can be used to make the brownie.

=> The price of each brownie is given by polynomial (x^2 + 3x -10).

Here, x is the number of ingredients used.

Thus -

=> Minimum value of x is 5 and maximum is 10.

Now -

=> We just need to substitute maximum and minimum values of x as 5 and 10 to find the maximum and minimum prices.

Maximum Price -

=> Here x=10. (Max number of ingredients)

=> x^2 + 3x - 10 = 10^2 + 3 * 10 -10 = 100 + 30 -10 = 130 - 10 = 120 rupees

Minimum price -

=> Here x = 5 (Minimum number of ingredients)

=> x^2 + 3x -10 = 5^2 + 3*5 -10 = 25 + 15 - 10 => 40 - 10 => 30 rupees