What is the solution to the system of equations? 3x − 6y = −12−x + 2y = 8

a.) Use the substitution or elimination method to solve the system of equations. Please show your work to receive full credit. (3 points)

b.) Based on your answer what do you know about the two lines in this system of equations on a graph? Are the lines parallel, do they intersect at a point or are they the same line? (3 points)

I need this for a quiz I'm taking

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed