Opt practice questions 2.
(a) Name the conic section formed when a plane cuts a right circular cone parallel to its base.

(b)write the equation of line of symmetry of the parabola given by y= ax +bx+c.

3.
(a) Express cos2A in terms of cotA.
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Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.