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svetoff [14.1K]
4 years ago
13

A. When x= -1, what is the value of y?

Mathematics
1 answer:
Pachacha [2.7K]4 years ago
5 0

Answer:

When x=-1, y=3; when y=7, x=1; the y-intercept is 5; the x-intercept is 2.5; the slope is 2; the lines' equation is y=2x+5

Step-by-step explanation:

The first two answers can be easily interpreted by looking at the graph. For the next two, remember, the x-intercept is the point where the line touches the x-axis and the y-intercept is the point where the line touches the y-axis. For question e, the slope can be calculated by plugging the two coordinates from the first two questions, (-1,3) and (1,7), into the formula \frac{y_2 - y_1}{x_2-x_1} or by using the graph to count the slope. The equation of the line is written in slope-intercept form, y=mx+b. Here, m is the slope and b is the y-intercept. Plug in these values that you already found while answering the previous questions and you have the answer.

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3 years ago
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