A2_BR_10/16_10/17

Find the inverse of the function
f(x) = 3x − 5

• f^-1(x)=3x +5

• f^-1(x)=(x+5)/3

• f^-1(x)=3y-5

• f^-1(x)=3y+5

Solve using elimination. 
 4x + 8y = 20
-4x + 2y = -30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)

Use Substitution to find the solution to this system of equations

y= 4x + 3

2x - 3y = 21

• (3,-9)

• (-3,-9)

• (-3,9)

• (0,1)

What is the solution to this system?

• (1, -1)

• (-1, 1)

• (0, -2)

• (2, 0)