|a| = 5? use a number line to solve?

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2007-03-19 16:35:44 · 3 answers · asked by Lesartistes 3 in Science & Mathematics ➔ Mathematics

the answer is a=5 and a = -5

on a number line, draw a number line from -10 to 10 and put a closed circle on 5 and -5

2007-03-19 16:38:49 · answer #1 · answered by Bill F 6 · 1⤊ 0⤋

|a| = 5 and |-a| equals 5 as well because they are both 5 whole numbers away from the number 0 on the number line. This is called absolute value.

2007-03-19 23:40:19 · answer #2 · answered by HavocInfinity 6 · 0⤊ 0⤋

"a" could be either -5 or 5 and have an absolute value of 5.

2007-03-19 23:38:55 · answer #3 · answered by Pi R Squared 7 · 0⤊ 0⤋