What is y= -(x-7)^2+5 converted to standard form

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.

What is the equation of a line that passes through points (0, 4) and (-4,-8)?