To find the equation of a line given the slope (m) and a point on the line (x, y), you can use the point-slope form of a linear equation, which is:
y – y1 = m(x – x1),
where (x1, y1) is the given point and m is the slope.
In your case, the slope m = 8 and the point is (5, 4). We can substitute these values into the formula:
y – 4 = 8(x – 5)
Now, let’s simplify this equation:
y – 4 = 8x – 40
Next, add 4 to both sides:
y = 8x – 36
This is the equation of the line in slope-intercept form (y = mx + b), where the slope is 8 and the y-intercept is -36.
Thus, the equation of the line with slope 8 that passes through the point (5, 4) is y = 8x – 36.