Evaluate the function for the indicated values. f (x) = 5[[x + 3]] - 5
(i) f (3) (ii) f (-63.30) (iii) f ( $\frac { 7 } { 8 }$ )

A)(i) 25 (ii) -305 (iii) 15
B) (i) 25 (ii) -305 (iii) 10
C) (i) 26 (ii) -310 (iii) 15
D) (i) 26 (ii) -310 (iii) 10
E) (i) 25 (ii) -310 (iii) 10

Question

Evaluate the function for the indicated values. f (x) = 5[[x + 3]] - 5
(i) f (3) (ii) f (-63.30) (iii) f ( $\frac { 7 } { 8 }$ )
 
A)(i) 25 (ii) -305 (iii) 15
B) (i) 25 (ii) -305 (iii) 10
C) (i) 26 (ii) -310 (iii) 15
D) (i) 26 (ii) -310 (iii) 10
E) (i) 25 (ii) -310 (iii) 10

Quizplus · Accepted Answer

The function uses the greatest integer function [[x]], which rounds down to the nearest integer. Calculating for each: (i) f(3) = 5[[3+3]] - 5 = 25, (ii) f(-63.30) = 5[[-63.30+3]] - 5 = -310, (iii) f(7/8) = 5[[7/8+3]] - 5 = 10.

Evaluate the Function for the Indicated Values 78\frac { 7 } { 8 }87​

Evaluate the Function for the Indicated Values $\frac { 7 } { 8 }$