What is the slope of the line that passes through (4, 0) and (8, -1)
1 answer:
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Answer:
m = 9
Step-by-step explanation:
Using the rules of exponents
=
×
⇔
=
Then
×
= 243 ← express all values to base 3
×
=
×
=
×
=
=
Since bases on both sides are equal, both 3 , then equate exponents
- 3m - 4 = 5 ( add 4 to both sides )
- 3m = 9 ( divide both sides by - 3 )
m = - 3