Use a system of linear equations to find the quadratic function
f(x) = ax2 + bx + c
that satisfies the given conditions. solve the system using matrices.
f(−2) = −11, f(1) = −5, f(2) = −23

Step-by-step explanation:

Let be the quadratic function.

implies that

Similarly,

and

From equation 2,

Put (4) into (1) to get:

Put (4) in (3) to get:

Subtract (6) from (5) to get:

Put b=-3 in (4) to get:

a=--3-5=-2

Put b=-3 in to (6) to get:

-2(-3)+c=-3

6+c=-3

c=-6+-3=-9

Therefore the required equation is

c) the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

town a, median = q2 = 30

town b, median - q2 = 25

so the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 2 times the age of the child?

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this needs to be the answer format, or else your answer is incomplete.

if the number of years is x, then the equation is

in __ years