Question

Find the equation of the line that contains the point (3,9) and is parallel to the line y=4x+1. Write the line in slope-intercept form. Graph the lines

Answer 1

Y = 4x + 1....slope here is 4. A parallel line will have the same slope

y = mx + b
slope(m) = 4
(3,9)...x = 3 and y = 9
now we sub and find b, the y int
9 = 4(3) + b
9 = 12 + b
9 - 12 = b
-3 = b

so ur parallel equation is : y = 4x - 3