4x + y = 7
y = -4x + 7
using y = mx + b
b being your y intercept, (0,7)
Do you have an image of the question?
Answer:
x=11, y=13
Step-by-step explanation:
3x-2y=7
3x-2(x+2)=7 . - x + = - -2*+2=-4
3x-2x-4=7
1x-4=7
x=7+4
x=11
y=x+2
y=11+2
y=13
Answer: c. refraction
Step-by-step explanation:
Answer: It is true, I explained it down below in the picture.
Step-by-step explanation: