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Can anyone help me I'm stuck​

Can anyone help me I'm stuck​-example-1
User PulledBull
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1 Answer

9 votes

Explanation:

y = 1/4 x

do you know what point coordinates are ?

they are "ordered pairs" of x and corresponding y values.

and do you know what a function is ?

a function "processes" an input x value and creates a corresponding y output value (the functions result).

a point is part of a function and on the graph of the function, if the x coordinate of the point leads to the y coordinate of the point as functional result of the function.

in other words, we take the x values and check, if the resulting y values are identical with the y coordinates.

(4, 1)

y = 1/4 × 4 = 4/4 = 1

match, this is a point on the graph.

(4, 0)

the same x value as before, leads to the same y value (1) as before. so, no match.

(8, 2)

y = 1/4 × 8 = 8/4 = 2

match, this is a point on the graph.

(0, 0)

y = 1/4 × 0 = 0

match, this is a point on the graph.

(1, 2)

y = 1/4 × 1 = 1/4

no match to 2. not a point on the graph.

(5, 6)

y = 1/4 × 5 = 5/4

no match to 6. not a point on the graph.

User Lynnann
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