y = mx + b slope(m) = 4 (3,51)...x = 3 and y = 51 sub and find b, the y int 51 = 4(3) + b 51 = 12 + b 51 - 12 = b 39 = b
so ur equation is : y = 4x + 39...but u need it in standard form
y = 4x + 39 -4x + y = 39 4x - y = -39 <==== this is ur equation...x = number of hrs and y = total velocity ==================== ur x axis is the number of hrs ur y axis is total velocity in km
y = 4x + 39......slope = 4.....y int = (0,39)....x int is (- 9.75,0) or -9 3/4 for graphing purposes)....so start at (-9.75,0)...and since the slope is 4, go up 4 and to the right 1....plot that...then up 4 and to the right 1...plot that...u will cross the y axis at (0,39)....and just connect ur plotted points and u have ur line......or what u can do since it is asking for the first 6 hrs....sub in 1 for x and solve for y....then sub in 2 for x and solve for y...keep doing this up till 6 and u will have ur line up till 6 hrs
