Question

The graph for the equation y = 2 x + 4 is shown below. On a coordinate plane, a line goes through (negative 2, 0) and (0, 4). If another equation is graphed so that the system has one solution, which equation could that be?

Answer 1

x=2

Explanation:

Our equation is y=2x+4

the line goes through (2,0) and (0,4)

• (2,0) is the x-axis intercept wich is given by y=0
• (0,4) is the y-intercept wich by y= 2*0+4

This equation has one solution for y=0

there are millions of similar equations that has one solution like:

x = 2

Answer 2

Answer: x = 1

Explanation:

x = 1 provides one solution for any linear equation, as it is a straight vertical line.

Hope it helps <3