Algebra Semester Review

How many solutions does the equation have?

• 0

• 1

• 2

• Infinitely Many

Solve for x.

• x = 1

• x = -2

• x = 3

• x = 5

The equation y = 3x + 1 would best be described as:

• Linear Increase

• Exponential Growth

• Exponential Decay

• A Parabola

In seven years, Seta’s son Stu is leaving home for college. Seta has $5000 now and has found a bank that pays 7.75% interest yearly. Which equation models how much money will she have for Stu’s first year of college?

• y = 5000(1.0775)^x

• y = 5000(1.775)^x

• y = 7.75x + 5000

• y = 1.0775x + 5000

Eight years ago, Rudi thought that he was making a sound investment by buying $1000 worth of Pro Sports Management stock. Unfortunately, his investment depreciated steadily, losing 15% of its value each year. Which equation models the value of the stock now?

• y = 1000(1.15)^x

• y = 1000(.15)^x

• y = 1000(.85)^x

• y = 8(.15)^x

Write the equation of the exponential function expressed in the table.

• f(x) = 1600(1.25)^x

• f(x) = 400x + 1600

• f(x) = 1600(0.8)^x

• f(x) = 500x + 2000

Classify the following equation:
f(x) = x² - 3x - 4

• Absolute Value

• Exponential

• Linear

• Quadratic

Factor the polynomial:
2x² + 5x + 3

• (x + 3)(2x + 1)

• (x + 5)(2x + 1)

• (x + 1)(2x + 3)

• (x + 1)(2x + 5)

Factor the polynomial.
6x² - x - 2

• (6x - 1)(x + 2)

• (2x - 1)(3x + 2)

• (2x + 2)(3x - 1)

• (2x + 1)(3x - 2)

Solve the quadratic.
x² - 12x = 28

• x = 14 or 2

• No solution

• x = 14 or -2

• x = -14 or -2