18 19 Multiple Choice 1 point Anegative horizontal stretch or compression is equivalent to __ a reflection over they.axis a positive output. a reflection over thex-axis. a negative output. Clear my selection 20 Under which condition is the confirmed absolute maximum NOT also a local (or relative) maximum? the function has only one point the function is constant it increases infinitely it is located atan endpoint Clear my selection Multiple Choice 1 point Evaluate f(2) for the function f(x)=5x-3 2 3 1 7 Clear my selection

For question 19, the correct answer is: a reflection over the x-axis.<br /><br />For question 20, the correct answer is: it is located at an endpoint.<br /><br />For the last question, the correct answer is: 7.<br /><br />Explanation:<br />For question 19, a negative horizontal stretch or compression is equivalent to a reflection over the x-axis. This is because a negative horizontal stretch or compression changes the sign of the x-values, which results in a reflection over the x-axis.<br /><br />For question 20, the confirmed absolute maximum is not also a local (or relative) maximum when it is located at an endpoint. This is because an absolute maximum can occur at an endpoint even if the function does not have a local maximum at that point.<br /><br />For the last question, to evaluate $f(2)$ for the function $f(x)=5x-3$, we substitute $x=2$ into the function:<br />$f(2) = 5(2) - 3 = 10 - 3 = 7$