SL AI – Algebra

Straight Lines

Solving Quadratics

Simultan. equations

Quadratic Graphs

Factorising Quadratics

Review

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Learning Outcomes
Find equations of horizontal and vertical straight lines
Understand the the terms gradient and y-intercept.
Find equations of diagonal straight lines.
Use straight lines to solve 2×2 simultaneous equations.
Use a GDC to solve 2×2 simultaneous equations.
Factorise simple quadratic equations such as x2+bx+c
Factorise simple quadratic equations such as ax2+bx+c where a>1.
Solve simple quadratic equations such as x2+bx+c=0
Solve simple quadratic equations such as ax2+bx+c=0 where a>1.
Solve quadratic equations by use of a GDC.
Understand the quadratic graph, including roots, lines of symmetry and minimum point.