The parallel lines on top of each other confuse me, any ?

Which of the following could be the graph of the equation y = -2x + 5

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

What power can you write to represent the volume of the cube shown? write the power as an expression with a base and an exponent and then find the volume of the cube