Suppose you are saving money for a new cell phone. At week 0 you have $20 and at week 10 you have $100. If y represents the amou
nt of money you have saved and x represents the number of weeks, find and interpret the slope of the linear equation. A. 1/8 ; $8 is put away each week. B. 10; $10 is put away each week. C. 8; $8 is put away each week. D. 1/10; $10 is put away each week
<span>you have 2 points (0,20) and (10,100)
now find the slope using change in y divided by change in x m=(100-20)/(10-0) m=80/10 m=8 is the slope</span>
If we plot the given values in the Cartesian plane, the points to which the line would pass are (0, 20) and (10, 100). Thus, the slope m is, m = (y2 - y1) / (x2 - x1) Substituting, m = (100 - 20) / (10 - 0) = 8 Thus, I saved 8 pesos per week. The answer to the question is letter C.
