Quadratic Graphs – Plotting – Demonstration This resource provides animated demonstrations of the mathematical method. Check animations and delete slides not needed for your class.

Plotting Quadratic Graphs ① 𝑦 =𝑥2+3 Plot the graph of: 𝑦 =𝑥2+3 𝑥 −3 −2 −1 1 2 3 𝑥2 9 4 +3 𝑦 12 7 (−3, 12) Split the equation into separate terms in the table. Complete each row. Total the columns Use the 𝑥 value with the 𝑦 value as coordinates.

Plotting Quadratic Graphs ② 𝑦 =𝑥2+𝑥 Plot the graph of: 𝑦 =𝑥2+𝑥 𝑥 −3 −2 −1 1 2 3 𝑥2 9 4 𝑦 6 12 Split the equation into separate terms in the table. Complete each row. Total the columns Use the 𝑥 value with the 𝑦 value as coordinates.

Plotting Quadratic Graphs ③ 𝑦 =𝑥2+2𝑥+4 Plot the graph of: 𝑦 =𝑥2+2𝑥+4 𝑥 −3 −2 −1 1 2 3 𝑥2 9 4 +2𝑥 −6 −4 6 +4 𝑦 7 12 19 Split the equation into separate terms in the table. Complete each row. Total the columns Use the 𝑥 value with the 𝑦 value as coordinates.

Plotting Quadratic Graphs 𝑦 =𝑥2−3𝑥+2 ④ Plot the graph of: 𝑦 =𝑥2−3𝑥+2 𝑥 −3 −2 −1 1 2 3 𝑥2 9 4 −3𝑥 6 −6 −9 +2 𝑦 20 12 Split the equation into separate terms in the table. Complete each row. Total the columns Use the 𝑥 value with the 𝑦 value as coordinates.

tom@goteachmaths.co.uk Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths.co.uk