H hbutcher New member Joined Nov 4, 2020 Messages 1 Nov 4, 2020 #1 A line passes through Point A (-8,7) and has a gradient of 4. Find the value of the y-intercept of the line, denoted by c.
A line passes through Point A (-8,7) and has a gradient of 4. Find the value of the y-intercept of the line, denoted by c.
skeeter Elite Member Joined Dec 15, 2005 Messages 3,216 Nov 4, 2020 #2 use the point-slope form of a linear equation ... [MATH]y-y_1 = m(x-x_1)[/MATH] ... then simplify to slope-intercept form, [MATH]y=mx+b[/MATH]
use the point-slope form of a linear equation ... [MATH]y-y_1 = m(x-x_1)[/MATH] ... then simplify to slope-intercept form, [MATH]y=mx+b[/MATH]
Steven G Elite Member Joined Dec 30, 2014 Messages 14,598 Nov 5, 2020 #3 ...or y=mx+c. You are given m=4. So you can now say y=4x+c. Use the point to find c.
