What is the equation of this graphed line?

Mathematics

2 answers:

Eva8 [605]3 years ago

6 0

Answer:

y = -9/8x + 7

Step-by-step explanation:

Slope-intercept form is:

y = mx + b

Points given:

(0, 7) and (8, -2)

y-intercept is

b = 7 as per the first point

And the slope is:

m = (-2 - 7)/(8 - 0) = -9/8

So the line is:

y = -9/8x + 7

Scorpion4ik [409]3 years ago

6 0

Answer:

<h3>Required Answer:-</h3>

points are

(0,7)
(8,-2)

slope =m

${:}\longrightarrow$ $\sf m={\dfrac {y_2-y_1}{x_2-x_1}}$

${:}\longrightarrow$ $\sf {\dfrax {-2-7}{8-0}}$

${:}\longrightarrow$ $\sf {\dfrac {-9}{8}}$

y intercept:-

Hence the equation is

${:}\longrightarrow$ $\sf y={\dfrac {-9}{8}}+7$

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Food allergies affect an estimated 7% of children under age 5 in the US. What is the probability that in a kindergarden class of

bezimeni [28]

Answer:

Probability of atleast one of 12 student has food allergies ≈ 0.58 ( approx)

Step-by-step explanation:

Given: Probability of a children under age 5 has food allergies = 7%

= $\frac{7}{100}$

To find : Probability of atleast one of 12 student has food allergies

Probability of a chindren under age 5 does not have food allergies = $1-\frac{7}{100}$

⇒ prob = $\frac{93}{100}$

now we find Probability of atleast one of 12 student has food allergies this means we have to find prob of 1 student, 2 student, 3 student, till 12 student have allergy out of 12 student of class then add all prob.

But instead of finding all these probability we find probability of student having no allergy.i.e., 0 student then subtract it from 1(total probability)

Probability of 0 student having allergy out of 12 student = $(\frac{93}{100})^{12}$