$\sum _ { i = 1 } ^ { n } \left( a x _ {i } + b \right)$ A)n × a × $\overline { \mathrm { x } }$ + n × b B)n(a + b) C) $\bar { x } + n \times b$ D) $n \times a \times \bar { x }$

Question

Quizplus · Accepted Answer

The sum of a constant term and a term that is a multiple of x is a linear expression. The sum of n linear expressions is a linear expression. The sum of n terms of the form (ax_i + b) is n(ax_i + b) = nax_i + nb.

∑i=1n(axi+b)\sum _ { i = 1 } ^ { n } \left( a x _ {i } + b \right)∑i=1n​(axi​+b)

$\sum _ { i = 1 } ^ { n } \left( a x _ {i } + b \right)$