From 1960 to 1970, the consumer price index (cpi) increased from 29.6 to
48.2. if a dozen donuts cost $0.89 in 1960 and the price of donuts increased
at the same rate as the cpi from 1960 to 1970, approximately how much did
a dozen donuts cost in 1970?

a. $1.79
b. $1.63
c. $1.45
d. $1.49

answer: option c

step-by-step explanation:

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)