Q2_Quiz#1

If a system of linear equations has one solution, what does this mean about the two lines?

• Dotted

• Intersecting

• Coinciding

If a system of equations has no solution, what does the graph look like?

• intersecting lines

• coinciding lines

• parallel lines

What is the solution?

• (2, 0)

• (-1, 1)

• (1, -1)

When you graph the exact same equation twice.

• You will have no solution.

• You will have infinite solutions.

• You will have one solution.

• You will graph a giraffe.

How many solutions will this system have?

• No solution

• I Don't Know

• One Solution

• Infinitely Many Solutions

If a system of linear equations has one solution, what does this mean about the two lines?

• Parallel lines

• Intersecting lines

• the same line

 $y=\ \frac{1}{4}x\ +5\ and\ \ y=\ -x$  Solve the following system of equations by graphing.

• (4, -4)

• (-4, 4)

• (0,0)

• no solutions

 $y=\ -2x+2\ and\ -2x+4y=-12$  Solve the following system of equations by graphing.

• (2, -2)

• (3, -4)

• (1, 0)

• Infinite solutions

 $2x+4y\ =\ 0\ \ and\ \ 8x\ +\ 2y\ =\ -14$  Solve the following system of equations using the elimination method:

• (-2, 1)

• (-2, 0)

• (-1, -3)

• no solutions

 $y=-4x+5\ \ and\ \ y=3x-16$  Solve the system of equations by substitution.

• (11, 17)

• (3,-7)

• (21, 47)

• (-3, -25)