Section 1.4 - Quadratic Equations

Multiple Choice

When using the quadratic formula to solve the equation $$4x^2=2-3x$$ , what are the values of a, b, and c?

• a = 4

  b = 2

  c = -3

• a = 4

  b = -2

  c = -3

• a = 4

  b = -2

  c = 3

• a = 4

  b = 2

  c = 3

Multiple Choice

The quaratic equation $$ax^2+bx+c=0$$ has two distinct solutions, then what can you say about $$b^2-4ac$$ ?

• Positive

• Negative

• Zero

• Inconclusive

Multiple Choice

The area A (in square feet) of a parking lot is represented by the equation $$A\ =\ x^2+9x+300$$ . Is it possible for the parking lot to have an area of 275 square feet?

• YES

• NO

• Maybe

Multiple Choice

The discriminants of two quaratic equations are 5 and -10, then can the equations have the same solution(s)?

• YES

• NO

• Maybe

Multiple Choice

The discriminants of two quaratic equations are 5 and 10, then can the equations have the same solution(s)?

• YES

• NO

• Maybe