Classify each triangle by its angles and sides. Equal sides and equal angles, if any, are indicated in each diagram.
12)
A) acute scalene
B) acute isosceles
C) right isosceles

sounds & other waves originate from any vibrating object

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)