Question Part (b)
Marking step 1
Description of marks: Find the values of \(a\) for no solutions
[1 mark for making gradients equal to each other and the \(y\)-intercepts not equal to each other]
[1 mark for choosing the right value of \(a\)]
Option type: Multiple (checkboxes)
Marking prompt : Which of the following calculation did you perform?
Options:
- I made the gradients equal to each other and the \(y\)-intercepts not equal to each other.
- I solved for \(a\) and got \(a=5\) as my answer.
Worked solution: