A, B, and C
In the equation 3x2 - 5x + 10 = 0, these are the values for a, b, and c.
a = 3
b = -5
c = 10
What is the value of the discriminant for x2 + 2x + 1 = 0
22 - 4(1)(1) = 0
Solve the equation using the quadratic formula: x2 + 5x + 6 = 0
x = -2
x = -3
A student says the "negative b" for x2 - 7x + 5 = 0 is -7. The actual value is...
7
This is the only fruit that bears it's seeds on the outside.
Strawberry
What is this quadratic equation in standard form: x2 + 4x = 12
x2 + 4x - 12 = 0
If the discriminant is a negative number, how many solutions will you have?
No solutions
Solve the equation using the quadratic formula: x2 - 8x + 16 = 0
x = 4
This part of the formula is often forgotten, but it acts as the denominator for the entire numerator.
2a
This animal lives in Northern parts of North America and is the largest member of the deer family.
Moose
What is the a-value for this equation: -x2 + x + 6 = 0
a = -1
If the discriminant is a positive number, how many solutions will you have?
2 solutions
Solve the equation using the quadratic formula: x2 - 2x - 4 = 0
x = 1 ± √5
You can only use the quadratic formula if the equation cannot be factored.
False! You can use it for all quadratics!
This is the only U.S. state that grows coffee.
Hawaii
What is the b-value for this quadratic equation: x2 - 9 = 0
b = 0
What is the discriminant for this equation: 2x2 - 3x + 5 = 0
(-3)2 - 4(2)(5) = -31
Solve the equation using the quadratic formula:
2x2 + 4x - 1 = 0
x = -2 ± √6 / 2
In the expression x = 4 ± √16 / 2, many students only divide the 4 by 2. You must also divide this by 2.
√16
This human body part stays the same size from birth, however, our nose and ears never stop growing.
Eyeballs
What are the a, b, and c values for this equation: 1/2x2 - 4 = 2x
a = 0.5 (1/2)
b = -2
c = -4
What is the value of the discriminant for this equation: 3x2 - 5x + 4 = 0. How many solutions will you have?
(-5)2 - 4(3)(4) = -23
NO SOLUTIONS
Solve the equation using the quadratic formula:
x2 + x + 5 = 0
No solution
When solving x2 - 6x + 9 = 0, a student simplifies the formula to 6 ± 0 / 2 and claims there are two solutions: 3 and 3. How many solutions does it actually have?
This animal is the only marsupial in North America.
Opossum