WILL GIVE BRAINLIEST!! What are values of a and b so the system of equations shown has no solutions?

y=7x+b
y=ax+4

A=7 and b= anything other than 4. The reason for this is because the lines must never touch (equal slope with different y intercept provides a parallel line that does not meet the original function). A solution is a point in which the two functions intersect. The other answer under this post is incorrect, as they have actually given you INFINITE solutions rather than none.