This study aimed to investigate the effect of using Symbolab program on acquisiting the concepts of functions, and Math anxiety of Tenth-Grade Students. To verify that, a teacher's guide was prepared for teaching functions using that program. The researcher has also developed a test on function's concepts and verified its validity and reliability. The sample of the study consisted of (63) tenth-grade students from a basic education school in Muscat Governorate. They were divided into two groups: an experimental group who studied the unit of functions by using Symbolab program and a control group who studied the same unit using the usual teaching methods. The study found that:  There is a statically significant difference at the level of significance (α = 0.05) between the mean score of the experimental group and the mean score of the control group in the witch test for the favour of the experimental group students.  There is a statically significant difference at the level of significance (α = 0.05) in the math anxiety's test to measure the Math anxiety for the favour of the experimental group. Based on the positive effects the study had shown in gaining the concepts of functions with students, the researcher recommended the necessity of applying and using Symbolab program in teaching algebra and other mathematical topics.