### Home > A2C > Chapter Ch4 > Lesson 4.1.2 > Problem 4-28

4-28.

Use what you learned in the parabola investigation to write an equation for each of the parabolas described below. 4-28 HW eTool (Desmos). Homework Help ✎

A parabola just like

*y*=*x*^{2}but shifted 8 units right and 5 units down.A parabola with a stretch factor of 10, sitting with its vertex on the

*x*-axis at (−6, 0).A downward-opening parabola with vertex (−7, −2) and a vertical compression of 0.6.

*y* = (*x* − 8)^{2} − 5

*y* = 10(*x* + 6)^{2}

Use the same method as parts (a) and (b).

Type functions for each part in the eTool below. Scroll down in the eTool to check your answers!

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