Math Contest Drills for Filipino Kids Easy Round Grade 9 Set 3

Here is the continuation of our Math Training Videos for Young Filipino Mathletes.
Third set of #grade9 trainer for eas6 round to prepare for #mtap and other math contests.
1. What is the slope of the line perpendicular to 𝟓𝒙+𝟑𝒚=𝟐?
2. Suppose y varies directly as x, and if 𝒙=𝟒, then 𝒚=𝟏𝟐. If 𝒙=𝟔, find y.
3. If 𝒙^𝟐𝟐=𝟒, what is 𝒙^𝟒𝟒?
4. List down the roots of the quadratic equation 𝒙^𝟐+𝒙−𝟔=𝟎.
5. Find the square of 𝟑+√𝟑.
6. Two sides of a triangle are 5 cm and 7 cm. The third side has integer length in cm. What is its largest possible length in cm?
7. Determine the vertex of the graph of 𝒇(𝒙)=𝟒𝒙 − 𝒙^𝟐.
8.A square has area 𝟑𝟔 〖𝒄𝒎〗^𝟐. Find the area in 〖𝒄𝒎〗^𝟐 of a square with half the perimeter.
9. A rhombus has diagonals with lengths 4 cm and 6 cm. Find its perimeter in cm.
10. If 𝒇(𝒙)=𝒙^𝟐, simplify 𝒇(𝒙+𝟒)−𝒇(𝒙).

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