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My exact explanation would depend on the students level of understanding. The following answer assumes a basic understanding of differentiation and equations of lines; a) Gradient of tangent is equal to g...

This question asks students to recall the equation Work done = Force x Distance. 

In this question, students must multiply 200 by 5, with the answer being 1000 Joules. 

It is important that ...

This question asks how students can formulate linear equations from worded questions. 

The first step is to give each person an algabraic symbol. j for John, s for Sandra and k for Kathy works fine...