Can I get some help on this question pls

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

If g(x) is an odd function, which function must be an even function?

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000