Find the definite integral by computing an area.
-$$\int _ { 1 } ^ { 8 } ( 5 x - 4 ) d x$$
A) $\frac { 259 } { 2 }$
B) 128
C) $\frac { 371 } { 2 }$
D) $\frac { 315 } { 2 }$

Name: Find the definite integral by computing an area. -\[\int _ { 1 } ^ { 8 } ( 5 x - 4 ) d x\] A) $\frac { 259 } { 2 }$ B) 128 C) $\frac { 371 } { 2 }$ D) $\frac { 315 } { 2 }$
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Question

Quizplus · Accepted Answer

The area of the triangle is $\frac { 1 } { 2 } ( 8 - 1 ) ( 5 ( 8 ) - 4 ) = \frac { 259 } { 2 }$.

Find the Definite Integral by Computing an Area ∫18(5x−4)dx\int _ { 1 } ^ { 8 } ( 5 x - 4 ) d x∫18​(5x−4)dx

Find the Definite Integral by Computing an Area $\int _ { 1 } ^ { 8 } ( 5 x - 4 ) d x$