GeoGebra is one of the teaching tool conducted by educator implement into their lesson plans to improve teaching and learning quality, make the classroom lesson more enjoyable, creative and innovative. Students can construct a graph, modify and observe the effects of changing graph shape. Moreover, students can be saved all their works documents for future reference systematically. The aim of this research was to analyse the application of GeoGebra on mathematics achievement in relation to the quadratic functions among gifted and talented Muslims student’s at Kolej GENIUS Insan, Universiti Sains Islam Malaysia. The effects of changing the coefficients values on the graphs of quadratic functions was identified. The results illustrate that changing in value of coefficient aon quadratic functions affects the shape and width of the graph, but, not the y-intercept. The position of the vertex on y-axis is only affected by changing the value of coefficient b, but the shape of the graph and the y-intercept remain unchanged. The shape of the graph is unaffected by changing the value of coefficient c, which only affects the location of the graph vertically upwards or downwards. Students' performance in understanding the effect of quadratic graphs improves when they use GeoGebra software.

GeoGebra is a teaching tool that educators use in their lesson plans to improve the quality of teaching and learning. Instead of drawing on a sheet of paper, students can design a graph, adjust the actual graph shape, and examine the impact of changing graph pattern using GeoGebra in mathematics teaching and learning. Furthermore, students can keep all of their work materials in a structured manner for future reference. GeoGebra will make a school lecture more interesting, exciting, creative, and innovative. The goal of this study was to analyse the effects of GeoGebra software in Mathematics achievement in respect to quadratic functions among gifted and talented Muslims student’s at Kolej GENIUS Insan, Universiti Sains Islam Malaysia. The maximum or minimum point of quadratic function was determined by using GeoGebra software, and the characteristics of quadratic expressions in one variables was also identified. The results illustrate that the graph quadratic expression has the highest point or the lowest point based the values of coefficient a on the quadratic function. For the graph function with negative values of coefficient a on a quadratic function, there are highest values of coordinates x and y, which also known as maximum point, while the graph function with positive values of a on a quadratic function, there are lowest values of coordinates x and y, which also known as minimum point. When students utilize GeoGebra software, their performance in calculating the minimum and maximum points on quadratic functions improves.