6.4.63 Find an equation for the graph shown to the right. Type the equation in the form y=A sin (ax) or y A cos (ax). (Type an exact answer, using x as needed. Use integers or fractions for any numbers in the expression.) -2x 2x LA 4 6.4.67 Find an equation for the graph shown to the right. Type the equation in the form y = A sin (x) or y = A cos (uk). (Type an exact answer, using x as needed. Use integers or fractions for any numbers in the expression.) Find the average rate of change of f from 0 to f(x)=sin The average rate of change is ☐ 5m 2 (Simplify your answer, including any radicals. Type an exact answer, using as needed. Use integers or fra The voltage V produced by an ac generator is V=240 sin (80xt). Use this information to answer the questions below. AV 240- 0 -240- 80 B. 240- M 40 -240- (c) If a resistance R=20 ohms is present, what is the current 1? [Hint: Use Ohm's Law, V=IR.J 1-12.0 sin (80xt) (Round to the nearest tenth as needed.) (d) What is the amplitude of the current I? The amplitude of the current is (Round to the nearest tenth as needed.) ○ C. 120- -120-