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SASMO 2019 Grade 9 Question 6

SASMO · SASMO 2019 Grade 9

Question 6

Which of the following is NOT true about a gradient (or slope)?

Interpretation: Use standard perpendicular coordinate axes with equal unit scales.
  1. If a line is horizontal, then its gradient is zero.
  2. If a line has a negative gradient and another has a positive gradient, the two lines intersect at exactly one point.
  3. A line with gradient 1 forms a 45° angle with the x-axis.
  4. If $m_1=-m_2$ for the gradients of two lines, the lines are parallel.
  5. None of the above