Linear Graphs
T

Understanding y = mx + c

Build the core idea from scratch with gentle steps and lots of hints.

Mathematics · Beginner

5

questions · ~4 min · 3 hints each (−5 pts)

Confidence tracking, 3-tier hints and instant feedback.

What you'll learn

Each question helps you build key knowledge and skills.

  • 1In y = mx + c, m is the gradient (steepness) and c is the y-intercept.
  • 2The y-intercept is where the line crosses the y-axis, at x=0.
  • 3A positive gradient means the line slopes upward left to right; negative means downward.
  • 4To find a y-value, substitute the x-value into the equation.

Question mix

A mix of question types to build your skills.

  • Short answer×3
  • True / False×1
  • Multiple choice×1

Different question types help you think in different ways.

How it works

A simple 3-step process

  1. 1

    Rate your confidence

    Tell us how sure you feel before answering. It helps us understand your starting point.

  2. 2

    Use hints if stuck

    Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.

  3. 3

    See what went wrong

    Get instant feedback with clear explanations, so you can learn and improve.

Ready when you are

This takes about 4 minutes.