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 -5. What is the y-intercept of this line, rounded to the nearest tenth?

Answer 1

Use y = mx + b. With m = -5 and point (1,2):
2 = -5(1) + b → b = 2 + 5 = 7.

Rounded to the nearest tenth: 7.0.