True/False Quiz for Chapter 1
Topic: Linear And Quadratic Functions And Their Applications


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Finite Mathematics Applied to the Real World

Calculus Applied to the Real World

Finite Mathematics & Calculus Applied to the Real World

1. The graph of any equation in two variables is a straight line.
2. The graph of any linear equation in two variables is a straight line.
3. If f(x) = x2 + 3x, then f(1) = 4.
4. If f(x) = 2x2 + 1, then f(3) = 37.
5. If f(x) = 2, then f(1) is not defined.
6. Every straight line has a slope.
7. Every line is the graph of a linear equation in two unknowns.
8. To find the equation of a line, all you need is a point and the slope.
9. You need to know the y-intercept to write down the equation of a line.
10. The graph of a quadratic function f(x) = px2+qx+r (with p nonzero) is always a parabola.
11. Some parabolas cross neither axis.
12. The vertex is the lowest point on a parabola
13. Every parabola crosses both axes.
14. In a linear cost function, the slope gives the cost of the first item.
15. If displacement is a linear function of time, then the slope of the graph represents the velocity.
16. If the weekly sales q of an item priced at $p are given by q = 3p + 40, then the weekly sales decrease by 3 items for every $1 increase in price.
17. If the total weekly revenue for items priced at $p is given by the function R(p) = -p2 + 100p, then the total weekly revenue will be $100 if we give the items away.
18. A real valued function of a real variable is a rule that assigns a number to each specified input number in a specified domain.
19. Some functions assign two or more numbers to each specified input number.
20. Every equation in x has at least one solution that can be found with a graphing calculator.

Last Updated: April, 1997
Copyright © 1995 Stefan Waner & Steven R. Costenoble