Revision (Grade 12 NSC Matric Mathematics): Quizzes

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In the linear function y=−3x+7y = -3x + 7, what is the gradient?

−3-3

What is the domain of all linear functions?

All real numbers

A linear function has gradient m=5m = 5. What type of function is it?

Increasing function

In y=−2x2+3x−1y = -2x^2 + 3x - 1, what shape does the parabola have?

Opens downward (frowns)

What is the axis of symmetry formula for quadratic functions?

x=−b2ax = -\frac{b}{2a}

A parabola has turning point (0,−2)(0, -2) and opens upward. What is its range?

{y:y≥−2,y∈R}\{y : y ≥ -2, y ∈ ℝ\}

What shape does a quadratic function create when graphed?

U-shaped curve (parabola)

For y=(13)xy = (\frac{1}{3})^x, what type of exponential function is this?

Exponential decay

What point do all exponential functions y=bxy = b^x pass through?

(0,1)(0, 1)

What is the horizontal asymptote for exponential functions y=bxy = b^x?

y=0y = 0

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Algebra

Polynomials

Sequences and Series

Functions

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Differential Calculus

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