usually nowadays mouse pads (if i am guessing on a laptop) are multi finger touch sensitive, meaning if you use 2 finger tips on the pad and slide up and down the pad you can simulate mouse scrolling. fair warning depending on your sensitivity settings it maybe really really touchy on how fast you slide your finger tips on the pad.
5 year old toshiba
it might you never know. if you have windows 7 or 10 on it (or the dreadful win 8) you might be able to do it
but if all else fails you can always buy a cheap used logitec wireless mouse on ebay like the m510