A.) what are the slope and y-intercept for the linear function represented in the table

Mathematics

1 answer:

Otrada [13]2 years ago

6 0

A) Pick any two points and use the formula (y2-y1)/(x2-x1) to find the slope:

(-8- -2)/(2-0) = -6/2 = 3

To find the y intercept, plug one of the points in the y=mx+b form and solve for b:

y=mx+b
4=3(-2)+b
4=-6+b
10=b

B) Using what we solved for, the equation would be y=3x+10

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2 + 10 = 24 3 + 6 = 27 7 + 2 = 63 5 + 3 = ????

True [87]

Answer:

40

Step-by-step explanation:

2 + 10 = 24

2(2 + 10) = 2×12 = 24

3 + 6 = 27

3(3 + 6) = 3×9 = 27

7 + 2 = 63

7(7 + 2) = 7×9 = 63

5 + 3 = 40

5(5 + 3) = 5×8 = 40

7 0

2 years ago

A publisher reports that 45% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is

nexus9112 [7]

Answer:

$z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933$

$p_v =2*P(z$

Step-by-step explanation:

Information given

n=370 represent the sample selected

$\hat p=0.4$ estimated proportion of readers owned a laptop

$p_o=0.45$ is the value that we want to test

z would represent the statistic

$p_v$ represent the p value

Creating the hypothesis

We need to conduct a hypothesis in order to test if the true proportion of readers owned a laptop is different from 0.45, the system of hypothesis are:

Null hypothesis: $p=0.45$