Answer:
x = 5
Step-by-step explanation:
The general point slope form of the equation of a straight line is given as:
y = mx + c
where,
m = slope of the line
c = y-intercept of the line
The given equation is:
y = 2x
comparing it with general point slope equation, we get:
m = 2, c = 0
Thus, the line passes through origin and it will form a right triangle with the horizontal axis. Now, for a vertical length of 10 means y = 10. Hence, to satisfy the given equation the horizontal length of triangle (x) must be:
10 = 2x
x = 10/2
x = 5
