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sergeinik [125]
3 years ago
15

Answer the questions below about the quadratic function.

Mathematics
1 answer:
Korolek [52]3 years ago
6 0

Given the function f(x)=3x^2-18x+23. The above function can be written as

f(x)=3x^2-18x+23\\ f(x)=3(x^2-6x)+23\\ f(x)=3(x^2-6x+9-9)+23\\ f(x)=3(x-3)^2-27+23\\ f(x)=3(x-3)^2-4

a)Now, the function f(x)=3(x-3)^2-4 has minimum value since the coefficient of (x-3)^2 is 3>0.

b) The minimum value of the function occurs at x=3 and its value is

f(3)=3(3-3)^2-4 =-4

c)The minimum value of the function occurs at x=3.

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Answer:

9

Hope this helps

Step-by-step explanation:

$4.95 times 30 equals $148.50 so $16.50 times 9 eqauls $148.50

8 1
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The sum of two numbers is 0. Twice the smaller number subtracted from 3 times the larger number is 10. Let x represent the large
Bezzdna [24]

Answer:

x+y=0 and 3x-2y=10

Step-by-step explanation

Let the numbers be x and y.

The sum of the two numbers is 0

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Also, 3 times the larger number

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Therefore the equations are

x + y =0

and

3x  - 2y =10

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