Sketch a velocity vs. time graph of a car accelerating in the positive direction. What is the slope of a velocity vs. time graph equal to?

Acceleration

Explanation:

Let me teach u a trick, most teachers loves to tell students to memorize what the slope means, and what does the area below the graph mean, and i think this is bs

So how u do it is this

Now it is a velocity vs time

Now to find the slope u would take

Velocity / time

Now what is the unit for velocity? m/s

What is the unit for time? s

Therefore since u know to find the slope u use

Velocity divide by time

So just take the unit of velocity divide the unit of time and see what unit u get

m/s ÷s

m/s x 1/s

= m/s^2

What unit is this?

This is the unit for acceleration

This trick works for every graph u see, and let me show u an extra bonus one

Now u are velocity vs time graph

Now if they ask u what does the area below graph means?

So u know area is just height x length, in other words y axis × x axis

So it means velocity x time

Therefore what would u get? Same trick

m/s x s

= m

What is m? m is meter, and this stands for displacement

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )