Question

What is the equation of line through (0,3) with slope - 1?

• A. y= -x+3
• B. y= x-3
• C. y= -x-3
• D. y=x+3

Answer 1

Answer:

A. y= -x+3

Use point–slope form:

$y - y_1 = m(x - x_1)$

Given point ((0,3)) and slope (m = -1):

y - 3 = -1(x - 0)
y - 3 = -x
y = -x + 3

Final Answer:

$\boxed{y = -x + 3}$