Which equation and statement below correctly explains why the table is a function? PLS HELP I MARK BRAINLEST D:

: y = 2x + 1y = 2 x + 1; for each input there is exactly one output

: y = 2x + 1y = 2 x + 1; one input value has more than one output

: y = \frac{5}{2} xy = 5 2 x; all input values are different
: y = \frac{5}{2} xy = 5 2 x; for each input there is exactly one output

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?