1. The table shows the performance ratings for technicians with years of experience with one company.Experience ofTechnician (in years)410172611815PerformanceRating7683987580858195(a) Write the linear regression equation that models the data, round all numbers to the nearest tenthLet x = years experience and let y = performance rating. You should use technology to findthe equation. Please upload the Excel file you used to find the trendline. Submissionswithout the Excel file will not receive credit.(b) Use the equation to estimate the performance rating for someone with 21 years of experience.Round to the nearest tenth (one decimal place). You must show your work.