State whether the given equation or function is linear. write yes or no. explain your reasoning. f(x) = 7x2 + 4

yes, the equation is linear. it is of the form f(x) = m + b
yes, the equation is linear form. it is of the form f(x) = mx + b.
no, the equation is not linear. it is in the form x + y = c.
no, the equation is not linear. it is not of the form f(x) = mx + b.

To make a monster appear large in a movie, a human actor wore a costume and walked through a scale model of a city. the scale used was 1 inch = 15 feet. the actor is 60 inches tall. how tall does the monster appear in the movie? question 5 options: 720 feet 75 feet 4 feet 900 feet

Can someone tell me if this is perpendicular? !

Our star pitcher, foster enlight, can throw a pitch so fast that it gets to the catcher’s mitt before it leaves foster’s fingers! if the team wins a game then the probability that foster was pitching is 0.8 but only if foster had at least one day’s rest since his last pitching assignment. if foster does not have a day off and the team still wins, the probability that foster was pitching drops by half of what it was on the previous day. if the team wins three games in succession from the toronto tachyons and foster pitched in game #2, what is the probability that he pitched in one or more of the other games? (assume that foster did not pitch on the day before the first game of this three game series.)