Line JK passes through points J(–4, –5) and K(–6, 3). If the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b?
Answer
A
–21
B
–4
C
11
D
27
Explanation
The slope through J and K is (3 − (−5))/(−6 − (−4)) = 8/(−2) = −4. Substitute J(−4, −5) into y = −4x + b: −5 = 16 + b, so b = −21, choice A.
AI-written and checked against the verified answer.