Simplify. [3 • (3 – 9)] + 9
1 answer:
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Answer:
Step-by-step explanation:
Factorise the denominator of the second fraction
y² - 1 = (y - 1)(y + 1) ← difference of squares
To obtain a common denominator
multiply numerator/ denominator of first fraction by (y + 1)
= -
← subtract numerators leaving the common denominator
=
=
= ← cancel common factor (y - 1) on numerator/denominator
=
Answer:
Step-by-step explanation:
If the slope is less than one but greater than zero, the graph will result in an exponential decay.