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lara31 [8.8K]
3 years ago
8

What happens to a line when the y-intercept is changed? Check all that apply. A. As the y-intercept increases, the graph of the

line shifts up. B. as the y-intercept decreases, the graph of the line shifts left. C. As the y-intercept increases, the graph of the line gets steeper. D. As the y-intercept decreases, the graph of the line shifts down. E. as the y-intercept increases, the graph of the line shifts right.
Mathematics
2 answers:
olga nikolaevna [1]3 years ago
5 0
<span>Answer: two options apply: A and D.
</span>
<span /><span /><span>A. As the y-intercept increases, the graph of the line shifts up.

D. As the y-intercept decreases, the graph of the line shifts down.
</span><span />

<span>Justification:


</span><span>1) Take the slope-intercept equation of the line: y = f(x) = mx + b</span>
<span /><span>
</span><span>2) The y-intercept is b
</span>
<span /><span /><span>
3) When b is increased, f(x) will increases too, that is f(x) will be higher or its graph will be shifted up, which is what the option A. states.
</span><span />

<span>4) When b is decreased, f(x) will decreases too, that is f(x) will be lower or its graph will be shifted dOwn, which is what the option D states.
</span><span />

<span>5) Regarding the options B and E, which deal with motions in the horizontal direction (left or righT), nothing can be said, as the effect of a change in the y -intercept on the horizontal direction will depend on the slope.
</span><span />

<span>6) Regarding the option C, a change in the y-intercept does not change the slope (the steep of the line).
</span><span />

USPshnik [31]3 years ago
3 0

Answer:

A. As the y-intercept increases, the graph of the line shifts up.

D. As the y-intercept decreases, the graph of the line shifts down.

Step-by-step explanation:

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<h3>What is the empirical rule?</h3>

According to the empirical rule, also known as the 68-95-99.7 rule, the percentage of values that lie within an interval with 68%, 95%, and 99.7% of the values lies within one, two, or three standard deviations of the mean of the distribution.

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P(x=-0.4)\\\\z=(-0.4-0)/2\\\\= -0.2\\\\P(x=2)\\z=(2-0)/2\\\\=1

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Learn more about the empirical rule here:

brainly.com/question/13676793

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