Which number line shows the solution set for |n|≤2

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

Consider the function y = f(x)=3^x the values of f(1/2) and f(1/4). rounded to the nearest hundredth, are__and__ respectively