Who can do this I confused except for number 1

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.

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Aline passes through 3,7 and 6,9 what equation represents the line