Simplify (3x^2 + 2x + 1) + (3x - 8) - (x^2 + 6x - 5)
1 answer:
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Answer:
Number 7:
This graph displays the change in wage per years of service. Since the slope is positive, this means the wage has a positive growth.
Number 8:
This graph displays the amount of people evacuating per hour. Since the slope is negative, this means the amount of people evacuating per hour is reducing.
Step-by-step explanation:
Number 7:
Step 1: Identify the points on the line to use for slope formula.
The two points are (2, 11) and (6, 17).
and
will be
and
will be
Step 2: Plug in points into slope formula.
Step 3: Subtract.
Step 4: Simplify.
improper fraction:
mixed number:
decimal:
Number 8:
Step 1: Identify the points on the line to use for the slope formula.
The two points are (3, 1200) and (6, 800)
and
will be
and
will be
Step 2: Plug in points into slope formula.
Step 3: Subtract.
Step 4: Simplify.
Cannot be simplified further.
mixed number:
decimal: