restrict the domains of quadratic functions and absolute value functions, because these functions are
functions. For instance, the quadratic function f(x) = x^2 pairs both −2 and 2 with 4, and the absolute value function f(x) = |x| pairs both −2 and 2 with 2.
Linear functions (excluding constant functions) and exponential functions are
functions, so their domains
to be restricted.
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An absolute value function, without domain restriction, has an inverse that is NOT a function.
In order to guarantee that the inverse must also be a function, we need to restrict the domain of the absolute value function to make it a one-to-one function.
Answer:
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Step-by-step explanation:
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Answer:
Graph Y
Step-by-step explanation:
<u>Given information</u>:
- Initial production cost = $1,050
- Lowest production cost = $250 for 200 items
- Production cost increases after 200 items.
- The x-axis shows number of items in <u>hundreds</u>.
- The y-axis shows the cost in dollars.
The initial production cost is when the number of items is zero.
Therefore, the y-intercept of the graph will be (0, 1050).
The lowest production cost is the <u>minimum point</u> of the curve.
Therefore, the vertex of the graph will be (2, 250).
The only graph that satisfies these conditions is graph Y (attached).
Learn more about parabolas here:
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Answer:
2 times
Step-by-step explanation:
Answer: 235
Step-by-step explanation:
Total score if he average 205 = 205 * 4 = 820
Score needed on 4th game = 820 - 210 -185 - 190 = 235
