What are the coordinate ofb'? after a translation of (x, y-6

An arrow is shot vertically upward at a rate of 180ft/s. use the projectile formula h=−16t2+v0t to determine at what time(s), in seconds, the arrow is at a height of 420ft. round your answer(s) to the nearest tenth of a second.

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.