GCSE Secondary Maths Age 13-17 - Graphs: Graphs - Explained

The video tutorial explains how to complete a table of values for a quadratic equation, y = X^2 - 3X + 2. It demonstrates checking calculations, plotting a graph, and finding solutions using the graph. The tutorial emphasizes the importance of symmetry in quadratic graphs and provides guidance on avoiding common mistakes. It also discusses marks allocation for correctly filling the table and drawing the graph.

What is the value of y when X is 5 in the equation y = X^2 - 3X + 2?

• 12

• 10

• 15

• 8

Which of the following is a characteristic of a quadratic graph?

• It is a straight line

• It is a symmetrical curve

• It is a zigzag pattern

• It is a circular shape

When plotting a quadratic graph, why should you avoid using a ruler?

• To make the graph look neat

• To maintain the curve's smoothness

• To ensure the graph is a straight line

• To save time

How do you find the coordinates where the quadratic equation equals four?

• By solving algebraically

• By guessing

• By using a calculator

• By drawing a horizontal line at y=4 on the graph

What is the estimated value of X when y equals four, according to the graph?

• 2 and 6

• 1 and 5

• 0 and 4

• -0.6 and 3.6

How many marks are awarded for correctly filling in the table of values?

• One mark

• Two marks

• Four marks

• Three marks

What is the shape of a quadratic graph?

• V shape

• S shape

• U shape

• L shape