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Which graph represents the function y = 2x - 4?


Please help

Which graph represents the function y = 2x - 4? Please help-example-1
User Lbsn
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2 Answers

4 votes
The 3rd one.

-4 is the y intercept and only two have the line going across (0,-4). 2 is the slope so we go up 2 and over 1. The 3rd one is the only one who has points at (0,-4) and (1,-2) as it shows we went up 2 & to the right 1.
User Yugantar
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5.4k points
5 votes

The third graph is the only graph that passes through both of these points.Therefore, the correct answer is the third graph.

The graph that represents the function y = 2x - 4 is the third graph.

We can find the x-intercept of the graph by setting y to 0 and solving for x.

0 = 2x - 4

4 = 2x

2 = x

Therefore, the x-intercept is at (2, 0).

We can find the y-intercept of the graph by setting x to 0 and solving for y.

y = 2(0) - 4

y = -4

Therefore, the y-intercept is at (0, -4).

The third graph is the only graph that passes through both of these points.

Another way to identify the correct graph is to consider the slope of the function. The slope of y = 2x - 4 is 2, which means that the line rises 2 units for every 1 unit it moves to the right. The third graph is the only graph that has a slope of 2.

Therefore, the correct answer is the third graph.

User Edina
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