•help plz• Two quantities, a and b, have a proportional relationship, where a is 4 when b is -3.

•Create an equation to represent this relationship •

What should be done to solve the equation? x+14=21 add 14 to both sides of the equation. subtract 14 from the left side of the equation. add 14 to the left side and subtract 14 from the right side of the equation. subtract 14 from both sides of the equation.

A50% increase followed by 33 1/2% decrease

Let f(x) = 1/x^2 (a) use the definition of the derivatve to find f'(x). (b) find the equation of the tangent line at x=2