Question

Nico is trying to write an equation in slope-intercept form for a line that passes through the point (1,2) and has a slope of −12 . What is the y-intercept of this line, rounded to the nearest tenth?

Answer 1

Start with y = mx + b. With m = −12 and (x,y) = (1,2):

2 = (−12)(1) + b → b = 2 + 12 = 14.

Rounded to the nearest tenth: 14.0.