Question 814341
data:
1990 1995 1998 1999 2000 30 36 37 42 49
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the data is not linear, but is approximately linear, so you can use linear regression to obtain an equation that models the data
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plug this:
1990 1995 1998 1999 2000 30 36 37 42 49
into this regression solver: 
https://sooeet.com/math/linear-regressionn.php
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then click the "xxyy" button in the solver
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Result:
slope = 1.57055215
y-intercept = -3096.65031
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Answer:
the linear equation model is:
y = 1.57055215x - 3096.65031
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Convert fractions, decimals, and percents:
https://sooeet.com/math/fraction-decimal-percent.php
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Calculate and graph the linear regression of any data set:
https://sooeet.com/math/linear-regression.php