What is the value of y when x = -3? 4x + 2y = 8

y = 10

Step-by-step explanation:

substitute x = - 3 into the equation

(4 × - 3) + 2y = 8

- 12 + 2y = 8 ( add 12 to both sides )

2y = 20 ( divide both sides by 2 )

y = 10

Down Below

Step-by-step explanation:

a) DE = √(3-2)² + (5-1)² = √1+16 = √17

b) EF = √(6-3)² + (2-5)² = √9+9 = √18

c) DF = √(6-2)² + (2-1)² = √16+1 = √17

d) Isosceles triangle as DE = DF