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You can express the value of AThe point (2, A_{3}) lies on the line through the points (0, A_{1}) and (1, A_{2}).

Find A_{3}

I have no idea where to start or what to do.

Use the Slope Formula with the coordinates of the two given points (0, A

Then use the Point-Slope Form to write an equation for the line -- use the slope expression and the known point (0, A

Finally, substitute into the equation of the line the x- and y-coordinates from the third given point, and solve for A

Please show your work, if you get stuck. :cool:

You can express the value of A_{3}in terms of A_{1}and A_{2}.

Use the Slope Formula with the coordinates of the two given points (0, A_{1}) and (1, A_{2}) to calculate an expression for the slope of the line.

Then use the Point-Slope Form to write an equation for the line -- use the slope expression and the known point (0, A_{1}).

Finally, substitute into the equation of the line the x- and y-coordinates from the third given point, and solve for A_{3}.

Please show your work, if you get stuck. :cool:

Got it, Thank You for the reply

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