The range of y=4/5sin x for pi 3pi/2

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

X-intercept=-5 y-intercept=2 the equation of the line is

Which of the following is true about the graph of f(x)=7^x. select all that apply. a= it intercepts the x axis b=it intercepts both axis c=it intercepts neither d=it intercepts the y axis