Analytic geometry for colleges, universities, and technical schools (1892)
Nichols, E. W. (Edward West), 1858- · Boston [Mass.] : Leach, Shewell & Sanborn · leaf 32
A. Fig. 6. Values of x Corresponding Values of y 1 4-2.9 and - 2.9 2 + 2.6 -2.6 3 _|_ 2 2 4 ±0 -1 + 2.9 -2.9 -2 4-2.6 -2.(^ -3 + 2 -2 -4 ±0 Locating these points and tracing the curve through them,we have the required locus. Referring to the value of y wesee from the double sign that the curve is… … under the radical we see that any value of x between thelimits 4- 4 and — 4 will give two real values for y ; and thatany value beyond these limits will give imaginary values fory. Hence the locus is entirely included between these limits. This curve, with which we shall have more to do…
Geometry, Analytic
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