Manuel has 4 cds that he is going to give away. He lets his best friend choose 2 of the 4 cds. How many different groups of 2 cds are possible

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval

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!