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1-68.

Write a possible equation for each of the following graphs. Verify your equations on your graphing calculator. 1-69 HW eTool (Desmos). Homework Help ✎

a.

Graph of y = (3/5)x +1

b.

Graph of a parabola with points (1, -3) and (3, 1)

You could use y = mx+b form. The slope and y-intercept are easy to see.

Or you could use point-slope form of a line.

Notice that this is a translation of y = x2.