Finding slope given the graph of a line on a grid. find the slope of the line graphed below

Answer this question! 30 points and brainliest! only if you know the answer.

The following graph shows the consumer price index (cpi) for a fictional country from 1970 to 1980? a.) 1976 - 1978b.) 1972 - 1974c.) 1974 - 1976d.) 1978 - 1980

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?