solving systems of linear equations: graphing

Raphael graphed the system of equations shown. y = - 3 y = x - 0.8 What is the best approximation for the solution to this system of equations?

(-2.2, -3)

Which is the best approximate solution of the system of linear equations y = 1.5x - 1 and y = 1?

(1.33, 1)

What value of b will cause the system to have an infinite number of solutions? y = 6x + b -3x + 1/2y = -3

-6

Tomas wrote the equation y = 3x + 3/4. When Sandra wrote her equation, they discovered that her equation had all the same solutions as Tomas's equation. Which equation could be Sandra's?

-6x + 2y = 3/2

Which values of m and b will create a system of equations with no solution? Select two options. y = mx + b y = -2x + 1/2

m = -2 and b = -1/3 m = -2 and b = -2/3

How many solutions does this linear system have? y = 2x - 5 -8x - 4y = -20

one solution: (2.5, 0)

Sylvie finds the solution to the system of equations by graphing. y = 2/3x + 1 and y = -2/3x - 1 Which graph shows the solution to Sylvie's system of equations?

third option

A system of equations has 1 solution. If 4x - y = 5 is one of the equations, which could be the other equation?

y = -4x + 5

Muriel says she has written a system of two linear equations that has an infinite number of solutions. One of the equations of the system is 3y = 2x - 9. Which could be the other equation?

y = 2/3x - 3

A system of equations has no solution. If y = 8x + 7 is one of the equations, which could be the other equation?

y = 8x - 7