Question

draw the graph of y=4x. from the graph find the value of y when X = -2
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Answer 1

The y coordinate of the point at which the line from x=-2 meets the graph of y=4x is the answer.

That is , the value of y when x=-2 is -8.

HOPE THIS HELPS YOU

Answer 2

Answer:

The value of $y$ is $-8$ when $x=-2$.

Step-by-step explanation:

Step 1 of 2

Consider the given function as follows:

$y=4x$ . . . . . (1)

Substitute the value 0 for $x$ in the function (1) as follows:

$y=4(0)$

$y=0$

Substitute the value 1 for $x$ in the function (1) as follows:

$y=4(1)$

$y=4$

Substitute the value -1 for $x$ in the function (1) as follows:

$y=4(-1)$

$y=-4$

The points $(x,y)$ of the function $y=4x$ is calculated in the table as follows:

$x$            0             1               -1

$y$            0             4              -4

Plot all the points on the graph.

Step 2 of 2

Form the graph,

Observe that for $x=-2$, the value of $y$ is -8.

$y=4(-2)$

$y=-8$

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