Question

At what points the graph of the linear equation 2x-y=7 cut the Y=axis​

Answer 1

Answer:

Step-by-step explanation:

Just as you know an intersection is a point of contact between two or more lines in a graph.

So here the line defined as -2x + y -7 =0 is intersecting the Y-axis.

We don't know where this God knows line intersecting the Y-axis may be at (x1,y1) or (x1,y2) or (x1,y3) but what we know is any line which intersect(point of contact on) Y- axis has a magnitude of 0(zero) on X- axis and vice versa.

i.e. all coordinates at Y-axis must be (0,y) &

all coordinates at X-axis must be (x,0)

So here if I deduce the eq. as

y = 2x +7. Do you have any problems?

Now put 0 in place of x variable as I said earlier that any point or coordinates on Y axis has a x magnitude of 0

=> y = 2*0 + 7 i.e. y = 7

So we get x = 0 and Y = 7

The answer for the coordinate is (0,7)

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