If a system of linear equations has no solution, then . the two lines have the same slope and the same y-intercept point

the two lines have the same slope but different y-intercept points

the two lines have different slopes but the same y-intercept point

the two lines have different slopes and different y-intercept points

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.