How many solutions a system of linear equations have if: Questions. 1.the equations have different slopes? 2.the equations have the same slope and different y-intercepts. 3.the equations have the same slope and same y-intercepts. Answers. A. no solutions. B. infinetly as many solutions C. two solutions. D. one solution

Step-by-step explanation:

1. The equations have different slopes.

then one real solution

Example:

subtract both sides of the equations

subtract x from both sides

substitute it to the first equation

If the lines have different slopes, they intersect. The intersection coordinates are the solution to this system of equations.

2. The equations have the same slope and different y-intercepts.

then no solutions

Example:

subtract both sides of the equations

It's FALSE

Conclusion: No solutions

If the lines have the same slopes, they are parallel. If they have different y-intercept, they have no common points (no solutions).

infinitely many solutions

Example:

add both sides of the equations

It's TRUE

Conclusion: infinitely many solutions

If the lines have the same slope and the same y-intercepts, then the equations shows the same line. Two overlapping straight lines have infinitely many common points (infinitely many solutions).

i can

step-by-step explanation:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.