Step-by-step explanation: To find slope take 2 points that lie on the line and use this formula to solve: <em></em>I will use (0, -2) and (2, -3) to solve
↑ ↑ ↑ ↑
y2 - y1 x1 y1 x2 y2
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x2 - x1
So, for this question, substitute the x and y values from the points above to solve.
Consumer Price Index or also most commonly known as CPI is calculated through the equation, CPI = (price at a certain year / price at base year) x 100 Since, we have chosen 2014 as the base year, the denominator of the fraction will be $86. Calculating the CPI for 2015, CPI = ($90/$86) x 100 = <em>104.65</em>