Write a quadratic function that is concave down with x-intercepts at 3 and 6.

Do it yourself

Step-by-step explanation: you ain't gonna get any smarter asking for all of the answers

Step-by-step explanation:

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(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.