Question

FAN AND MEDAL!!!
How many solutions will this system of equations have?

y = -3.5x - 3.5
y = -3.5x + 3.5
No solution
Infinite solutions
One solution
Two solutions

Answer 1

What do you think?

Answer 2

B?

Answer 3

Let's solve together :) Firstly we should equate 2 equations and what do we have ?

Answer 4

Wait tell me if im right

Answer 5

they are parrallel

Answer 6

You're not because if you write that:
-3.5x + 3.5 = -3.5x + 3.5
Then we have -3.5 = 3.5 but it's not true so there's no solution.

Answer 7

Yes they're parallel and parallel lines don't intersect.

Answer 8

Thanks! Can you help me with another one?

Answer 9

Of course:)

Answer 10

The graph of a system of equations with different slopes will have no solutions.
Always
Sometimes
Never

Answer 11

is it the last one?

Answer 12

It's never because in exclusive situation <if they have same slope> (that means they're parallel) lines don't intersect.So it is not important what slopes are.If they are different(slopes);lines intersect at certain point.

Answer 13

The certain point solution of equation.

Answer 14

So it's the last one?

Answer 15

Yes (never) the last one.