Final answer:
After substituting x=-1 into the linear equation y=10-4x, we solve for y, finding that y=14. The correct answer is option b.
Step-by-step explanation:
The question provided requires us to substitute the value of x into the linear equation y=10-4x to find the corresponding value of y. We are given that x = -1, so we substitute that into the equation:
y = 10 - 4(-1)
Now, we solve for y:
y = 10 + 4
y = 14
The correct option is b. 14.