Which function will have a y-intercept at-1 and an amplitude of 2?

x) = -sin(x) - 1

x) = -2 sin(x) - 1

x) = -cos(x) x) = -2 cos(x) - 1

you should at least use a calculater

step-by-step explanation:

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!