select the graph that would best represent a polynomial function of even degree and has a leading…

select the graph that would best represent a polynomial function of even degree and has a leading coefficient that is positive.

select the graph that would best represent a polynomial function of even degree and has a leading coefficient that is positive.

Answer

Explanation:

Step1: Recall End Behavior Rules

For a polynomial ( f(x) = a_nx^n + \dots + a_1x + a_0 ), the end - behavior is determined by the leading term ( a_nx^n ). If the degree ( n ) is even:

  • If ( a_n>0 ) (positive leading coefficient), as ( x\rightarrow\infty ) and ( x\rightarrow-\infty ), ( f(x)\rightarrow\infty ) (both ends of the graph go up).
  • If ( a_n < 0 ) (negative leading coefficient), as ( x\rightarrow\infty ) and ( x\rightarrow-\infty ), ( f(x)\rightarrow-\infty ) (both ends of the graph go down).

Step2: Analyze Each Graph

  • For the first (red) graph: As ( x\rightarrow\infty ), the graph goes down, and as ( x\rightarrow-\infty ), the graph goes up. So the end - behavior does not match the even - degree positive - leading - coefficient case.
  • For the second (blue) graph: As ( x\rightarrow-\infty ), the graph goes up, and as ( x\rightarrow\infty ), the graph goes down. This also does not match. But wait, maybe there is a third graph (not fully shown) or we re - evaluate. Wait, perhaps the user's image has a third graph. But from the given two, we must have made a mistake. Wait, no, the key is: for even degree and positive leading coefficient, both ends should go up. Let's assume that among the options, the graph (maybe the one with the blue curve? No, wait, maybe the third graph (the one with the upward - pointing ends). But since the user's image shows three options (the first red, second blue, third partially shown). Wait, the correct graph should have both ends rising (since even degree, positive leading coefficient). So we check the end - behavior: when ( x\rightarrow\pm\infty ), ( y\rightarrow\infty ). So the graph with both ends going up is the correct one. Let's assume that the third graph (the one with the upward ends) is the correct one. But from the given two, we must have mis - looked. Wait, no, the first graph: left end goes down, right end goes down? No, first graph: as ( x\rightarrow-\infty ), the graph goes down (since the left - most part is going down), and as ( x\rightarrow\infty ), it goes down. So degree is odd? No, first graph: number of turning points? Wait, no, end - behavior for even degree: both ends same. If leading coefficient positive, both ends up. So the graph with both ends up is the correct one. So among the options, the graph (probably the third one, but if we consider the given two, maybe the user made a typo. But according to the rule, the graph with both ends rising (going to ( +\infty ) as ( x\rightarrow\pm\infty )) is the answer.

Answer:

The graph (assuming the third one with both ends going up, or if among the given, the one with both ends rising. If we consider the standard, the graph with end - behavior ( x\rightarrow\pm\infty,y\rightarrow\infty ) is the correct one.