Which of the following graphs represents the function f(x) = −x2 − x + 6? (correct answer will receive 30 points and be marked as brainliest)

The function f(x) describes a parabola that opens downward. The only graph with that shape is the 2nd one.

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The degree of 2 on the x² term means there will be only 1 turning point (1 less than the degree). The bottom two choices have more turning points than that.

The minus sign on the coefficient of x² means the graph opens downward—that it tends toward -∞ when x gets very large in magnitude, either positive or negative.

the 3rd on is correct

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.