### Dr. Wilson

1. Graph y = 2x - 3.

2. What is the slope of the line joining (2, 3) and (4, 1)?

3. What is the equation of the line in #2?

4. Suppose that you after 3 months you have \$350 in your account and after 7 months you have \$650.

• a) Let x denote the number of months the and let y denote the amount of money in the account. Find a linear equation which will predict how much money you will have in the account as a function of the number of months
• b) Graph this function.
• c) Use this function to determine how much money you will have after 12 months.

5. Draw the graph of

y = f(x) = x2 + 2x - 8

• a) What is the y - intercept?
• b) What are the roots?
• c) What are the coordinates of the vertex?
• d) Write the equation in standard or vertex form.
• e) Solve for x

x2 + 2x - 8> 0

6. Draw the graph of

• a) What is the y-intercept?
• b) What are the roots or x-intercepts?
• c) Where are the vertical asymptotes?
• d) Are there any horizontal asymptotes and if so where are they?
• e) Solve for   x.

In 7 and 8, solve for  x   and check

8.

9. Graph   y = 1.5x.

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