At what point does the line containing the points (1,7) and (3,11) intersect the y-axis? Express your answer as an ordered pair.
Slope = (11 - 7) / ( 3 -1) = 4 / 2 = 2
Equation of line
y = 2(x - 1) + 7
y = 2x - 2 + 7
y = 2x + 5
The line intersects the x axis where y = 0
So
0 = 2x + 5
-5 = 2x
-5/2 = x
It says it is wrong tho.
Chris has given the point tht intersects the x-axis. To find the point that intersects the y-axis, set x = 0 and calculate the corresponding value of y from the equation y = 2x + 5.
+52 
