The price of an item has dropped to $42 today. yesterday it was $105. find the percentage decrease.

CORRECT ANSWER: It decreased by 40%
CORRECT SOLUTION:
1. Divide the 42 by 105 (make sure you divide the after amount before the actual amount)
2. The answer you get is 0.4
3. move decimal point 2 places to the right and you get your answer
Hope this helps :)

Is it 2 1/6 that the percentage decrease

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!