Dalam rajah di sebelah, PQR dan UTS ialah garis lurus. Cari nilai x dan y.

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.

Answer! if you don’t mind, can you explain

Use sigma notation to represent the following series for 9 terms.