Question

HELP FAST BUT CHOOSE CORRECT ANSWERS CAREFULLY PLEASE! (30 POINTS)

1. What is the slope of the line?

y=-3x+8

slope = ?

2. What is the y-intercept of the line?

y=-2x-8

y-intercept = ?

3.
What is the slope, and what is the y-intercept of the line?

y=5/4x+9

slope = ?/?

y-intercept = ?

4. What is the slope-intercept form of this equation?



8 x plus 6 y equals 12


A. y equals negative fraction 4 over 3 end fraction x plus 2


B. y equals negative fraction 4 over 3 end fraction x plus 6


C. y equals fraction 4 over 3 end fraction x plus 6


D. y equals 2 thirds x plus 2

5.

linear inequality graph


Which of the lines graphed in the diagram represents the equation

x – 3y = –3? (IMAGE FOR THIS QUESTION)



A.


line a


B.


line b


C.


line c


D.


line d

Answer 1

d.

Explanation:

correct on e2020

Answer 2

The numbers before the X are the slope, the numbers after the x are the Y- intercepts.

1. Slope = -3

2. y-intercept = -8

3. Slope = 5/4, y-intercept = 9

4. 8x+6y =12

subtract 8x from each side to get Y on the left side:

6y = -8x +12

Divide each term by 6:

y = -8x /6 + 12/6

y = -4/3x + 2

The answer is A.

5. Rewrite the equation in slope intercept form:
x-3y = -3
-3y = -x -3
y = 1/3x +1

The slope is 1/3, the y-intercept is 1

The correct line is B. line b