Give the correct triangle congruence theroen

Find the equation of the line that goes through the points (4, –1) and (2, –5). use slope formula, equation, to find the slope of a line that passes through the points. m = use slope-intercept form, y = mx + b, to find the y-intercept (b) of the line. b = write the equation in slope-intercept form, y = mx + b.

Hi, can anyone show me how to do this problem? 100 points for this. in advance

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex