The efficiency of a motor can be measured by the percentage of the input power that the motor uses. E(c) E(c)E, left parenthesis, c, right parenthesis models the efficiency (in percentage points) of a certain motor as a function of the power input's current c cc (in amperes).

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x? y? z? , with vertices x? (4, -2), y? (4, -3), and z? (1, -4). the type of transformation that triangle xyz undergoes is a . triangle x? y? z? then undergoes a transformation to form triangle x? y? z? , with vertices x? (4, 2), y? (4, 3), and z? (1, 4). the type of transformation that triangle x? y? z? undergoes is a .