Is the graphed line straight or curved simple linear


Need help understanding graphing, slope and points.

Is the graphed line straight or curved. simple linear equation or multiple linear equation.

If the statistical T-value for the second regression coefficient is 9.80 is the coefficient valid at the 95% confidence level? why or why not

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

  • 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?

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Microeconomics: Is the graphed line straight or curved simple linear
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