Algebra 2 FSA Review 2

The area of a rectangle is
2x² - 7x - 9. 
The width of the rectangle is 
x + 1.
Find the length.

• 2x² - 9x
• 2x² - 5x - 14
• 2x - 9
• 2x - 5x - 14

What is the discriminant?

• -b + 4ac
• -b/2a
• b² + 4ac
• b² - 4ac

If you get a negative discriminant, how many solutions does the function have?

• 0
• 1
• 2
• 3

Select the correct logarithmic form of the exponential equation
1 = 2000⁰

• log₀1 = 2000
• log₁₀1 = 2000
• log₂₀₀₀1 = 0
• log₁2000 = 0

f(x) = 6 - ⅔x
Find f⁻¹(8).

• ⅔
• -3
• 3
• - ⅔

Simplify the exponential expression.

• 2x⁶y¹²
• 2x⁵y⁷
• 8x⁶y¹²
• 8x⁵y⁷

Simplify the exponential expression:

• 10x^-2
• 2x²
• 2x¹²
• 10x¹²

Given y=3^x determine the y-intercept 

• (0, 1)
• (0, 3)
• (0, 0)
• (3, 0)

Solve: 9^8-x = 27^x-3

• 5
• -5
• 1/5
• -1/5

Solve: 7^-x = 49

• 1
• -1
• 2
• -2