The scatterplot for a set of data points is shown, along with the line of best fit. choose the best estimate for r, the correlation coefficient.
a) -1.0
b) -0.8
c) 0.8
d) 1.0

4. (10.03 mc) the equation of line cd is y = −2x − 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = −2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 − 2x − 3