What is the intercept of the line?

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· The equation of a line is the following: y = 2 + 0.28x1 + 43.8x2.

· What is the intercept of the line?

· Is this equation a straight or curvilinear line, and why?

· Is this the equation for a simple linear equation or a multiple linear equation?

· What are the two regression coefficients?

· If the statistical t-value for the second regression coefficient is 9.80, is the coefficient statistically valid at the 95% confidence level? Why or why not?