What is the equation of the line that passes through the point (4,3) and has an undefined slope?

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I HAVE TO SUMBIT IN 30 MINUTES:(

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?