Question detail
notation check: find the gradient of the line through (21, 22) and (25, 26). Show your working one step at a time.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Solving equations and inequalities
Question
notation check: find the gradient of the line through (21, 22) and (25, 26). Show your working one step at a time.
Answer
The final answer is 1. Gradient means change in y divided by change in x. The change in y is 4. The change in x is 4. Divide the change in y by the change in x. 1
Explanation
exam warm-up keeps the canonical answer 1 fixed before the model answer is written, so the worked solution and final answer agree.
Common mistake
Quadratic equations common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Higher only] Solve quadratic equations by completing the square and using the quadratic formula..
Show the method first, then give the final answer in the required form. Apply this directly to Quadratic equations.
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