Write an equation in Slope Intercept Form for the following line.

Mathematics

2 answers:

katrin2010 [14]3 years ago

4 0

Answer:

y=2x+-4

Step-by-step explanation:

Ray Of Light [21]3 years ago

4 0

Answer:

The equation in slope intercept form (y = mx + b) is y = 2x - 4

m = the slope

b = the y intercept

The line cross the y-axis at -4 so the y-intercept (b) is -4.

You can use the slope formula $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ since you have plotted points (0, -4) and (2, 0) on the graph that you can plug in.

$\frac{0--4}{2-0}$ = $\frac{4}{2}$ = 2

So the slope (m) is 2. Now you can make the slope-intercept form using these values. So, the equation for the line is y = 2x - 4

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Step2247 [10]

Answer:

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Step-by-step explanation:

We have a large sample size n = 56 research cotton samples. Besides, $\bar{x} = 8.17$ and $s = 1.42$ . A 95% large-sample CI for the true average percentage elongation is given by $\bar{x}\pm z_{0.05/2}(s/\sqrt{n})$ , i.e., $8.17\pm (1.96)(1.42/\sqrt{56})$ or equivalently (7.7981, 8.5419). The distribution of percentage elongation can be any distribution with finite mean and variance because we have a large sample.