If you add the standard deviation to the average, it is 14.84. Because Marcus's score was lower than that, he will not receive a certificate.
I think this should be right for the reason and the calculation.

8 0

3 years ago

2 v What is the equation of a line that is parallel to y = -4x – 3 and shifted down 3 units?

Ugo [173]

Answer: $y=-4x-6$

Step-by-step explanation:

Given

The equation of line is $y=-4x-3$

The line which is parallel to the given line is $y=-4x+c$

and shifted by 3 units down i.e. its y-intercept is 3 units below the given line

$\therefore y=-4x-3-3\\\Rightarrow y=-4x-6$

3 0

3 years ago

Which is the graph of y = 3/ x + 1 - 2?

garri49 [273]

Answer:

The second graph near the bottom with a Y-intercept of -1

7 0

3 years ago

Read 2 more answers

This table models a linear function. x −8 −4 4 8 y −3 0 6 9 Enter the coordinates of the y-intercept in the boxes.

adell [148]

Answer:

y-intercept is 3

Step-by-step explanation:

We are given table

x: -8 -4 4 8

y: -3 0 6 9

We can select any two points

$x_1=-8,y_1=-3$

$x_2=-4,y_2=0$

Firstly, we will find slope

$m=\frac{y_2-y_1}{x_2-x_1}$

now, we can plug values

$m=\frac{0+3}{-4+8}$

$m=\frac{3}{4}\quad$

now, we can use point slope form of line

$y-y_1=m(x-x_1)$

we can plug values

$y+3=\frac{3}{4}(x+8)$

now, we can solve for y

$y=\frac{3}{4}x+3$

For finding y-intercept , we can plug x=0

$y=\frac{3}{4}\times 0+3$

$y=0+3$

$y=3$

So,

y-intercept is 3

8 0

3 years ago