If you do maths in the morning you are awake and concentrated whereas you could do it at night and be more likely to remember it the next day.
Slope- (1,1) the slope is always x over y
Ik this doesn't help but maybe look the questions up online bc those are even confusing for me to understand. Really sorry I couldnt help :(
Divide change in the output value by the change in the input value for example in this question the rate on the y=+5 and on the x value it’s +1
