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The graph of the quadratic polynomial -x+ x + 90 will open upwards.
  • a)
    False
  • b)
    True
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The graph of the quadratic polynomial -x2+ x + 90 will open upwards.a)...
Understanding Quadratic Polynomials
A quadratic polynomial is generally expressed in the form:
- **\( ax^2 + bx + c \)**
Here, \( a \), \( b \), and \( c \) are constants, and \( x \) is the variable.

Coefficient of \( x^2 \)
The direction in which the parabola opens is determined by the coefficient \( a \):
- **If \( a > 0 \)**, the parabola opens **upwards**.
- **If \( a < 0="" \)**,="" the="" parabola="" opens="" />

Analysis of the Given Polynomial
The given quadratic polynomial is:
- **\(-x^2 + x + 90\)**
In this polynomial:
- \( a = -1 \) (the coefficient of \( x^2 \))
- \( b = 1 \) (the coefficient of \( x \))
- \( c = 90 \) (the constant term)

Determining the Direction of the Parabola
Since the coefficient \( a \) is **-1** (which is less than 0):
- The parabola opens **downwards**.

Conclusion
Therefore, the statement that the graph of the quadratic polynomial \(-x^2 + x + 90\) will open upwards is:
- **a) False**
This means the correct answer is option **A**.
Understanding the behavior of quadratic polynomials is crucial for solving and graphing them accurately!
Free Test
Community Answer
The graph of the quadratic polynomial -x2+ x + 90 will open upwards.a)...
The graph of the polynomial will have a downward opening since, a < 0
The graph for the same can be observed here,
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