1. Plot the points A(-4, 6) and B(3, -5) on a rectangular
coordinate system and label them.

2. Graph the line by
the ordered pairs method , obtaining ordered pairs for x- values of 3, 0 and -3.

3. Graph the line .x=4

4. Graph the line 2x-3y=12 by the slope- intercept method .
Clearly identify the slope and the y-intercept.

5. A sales associate earns 4% commission on sales plus a
base salary of $1200 per month.

This relationship can be expressed by the equation G =0.04S + 1200, where G is
gross

salary and S is sales. Graph this equation by the ordered pairs method,
obtaining

ordered pairs for sales of $0, $5000 and $20,000.

6. Find the slope of a line that passes through the points
(-4, 5) and (2, -3).

7. Find the equation of the line that has a slope of -7
and an y-intercept of
. Write the

equation in slope-intercept form.

8. Find the equation of the line that has a slope of -3 and passes through the
point (2, -1).

9. Find the equation of the line that passes through the points (5, -3) and (1,
0).

10. Evaluate the exponential form:(14)^{−1
}

11. Evaluate the exponential form:-5^{2}

12. Evaluate the exponential form:

13. Write the number in standard form: 1.85 x 10^{6}

14. Write the number in standard form: 3.48 x 10^{−4
}

15. Write the number in scientific notation: 54,600,000,000

16. Write the number in scientific notation: 0.000000076

17. Identify the degree of the monomial : 8x^{3}y^{4}z

18. Identify the degree of the polynomial and write it in descending order:

16 – 3x^{8} + 5x^{6} – 4x^{2}

19. Combine like terms . Write the resulting polynomial in descending order:

16x^{3} – 15x^{2} + 10x – 8 + 12x^{2} – 3x

20. Add . Write the resulting polynomial in descending order.

(5r^{6} + 6r^{4} – 3r^{2}+ 7) + (-9r^{4} – 8r^{6}
– 5)

21. Subtract . Write the resulting polynomial in descending order.

(2m^{3} – 5m^{2} + 3m – 7) – (6 + 8m – 6m^{2} + m^{3})

22. Simplify :-5x.3x^{7}

23. Simplify:

24. Simplify:

25. Simplify: (6ab^{3}c^{5})(-a^{4}b^{8})

26. Simplify: 5m^{7}(3m^{3} – 2m^{2} + 1)

27. Multiply. Write the answer in scientific notation. (-7 x 10^{12})(3.1
x 10^{13})

28. Divide . Write the answer in scientific notation. (4.2 x 10^{14})/(8.4
x 10^{-20})

29. Factor by the GCF method : 18x^{4}y^{3} + 12x^{2}y

30. Factor by grouping : 3xa – 3xb + 2ya – 2yb

**1205 Practice Midterm #3 – Answers**

#1 – 5 Graphing Answers: SEE LAST PAGE