The equations of four lines are given. Identify which lines are perpendicular. Line 1: y=2
Line 2: y=1/5x−3
Line 3: x=−4
Line 4: y+1=−5(x+2)

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.

Write the expression as a single natural logarithm. 2 in a - 4 in y