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These two functions intersect.
y=x+2

y=2x+3

Set the equations equal to each other, as shown in the notes, and solve for x. (It then says show all of your work but I just need help understanding the problem)


Sagot :

Answer:

x = -1

Step-by-step explanation:

if you plot these two functions (which are both straight line graphs), you will see that they intersect at one point.  The value of x you are trying to find is the x-coordinate of the point of intersection (see attached graph).

                                                x + 2 = 2x + 3

subtract x from both sides:         2 = x + 3

subtract 3 from both sides:         -1 = x

Therefore, x = -1

Sub x = -1 into either of the functions to get the y-coordinate of the point of intersection:

y = -1 + 2 = 1

So the point of intersection is (-1, 1)

View image semsee45
X=-1 this is because you have to get the X alone then you can solve the rest from there