calculator question

Test Preparation AP Test Preparation
1

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<p>Look at #3. I understand the whole question, but there are parts where it says x(t) = 140, so t = 0.23443.... If it's a parametric curve, how do you determine where x(t) = 140? I know what to do with the value of t, but not how to find it =[</p>

2

<p>I’d plug the equation into the graphing part of the calculator and then make Y2=140
calculate intersection from there.</p>