Match each point of intersection with the system of equations whose solution is at that point.

w
x
y
z
y = -2x − 3
y = 2x − 1
arrowright
y = x + 4
y = -x + 2
arrowright
y = -2x − 3
y = x + 4
arrowright
y = 2x − 1
y = -x + 2
arrowright

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%