write the following using algebraic notation, using the letter x for any unknown numbers. i think of a number, double it, then add 9

If two points are given,then exactly one line can be drawn through those two points.which geometry term does the statement represent

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.

If f(x)=1/x and g(x)=x+4 which of the following is the graph