The key idea of the transformation called a rotation is the moving of the plane a certain ___(1)___ about a ___(2)___ point.
1- distance, angle
2- fixed, unknown

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z