A perendicular line will have a slope that is the negative reciprocal of the perpendicular slope. The negative reciprocal of - 1/3 is 3. So far we have y=3x+b since 3 is the new slope. However, we need to set a b value such that it passes through (1,5). Set y to 5 and x to 1. 5=3(1)+b and we can see that to satisfy this, b must be 2. Thus, the line is y=3x+2
Step-by-step explanation:
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1 roll of tape: 1.28/2=$0.64
2 notepads: .87/3=.29x2=$0.58
2 highlighters: 1.59x2=$3.18
2 pens: $1.98
.64+.58+3.18+1.98=$6.38
Answer:
I think but not sure we read this question by 3 unit