Question

Ned help with question​

Answer 1

Answer:

y-intercept: 1, slope: 1

Step-by-step explanation:

Y intercept is when the line crosses the y axis, so it is 1.

Use the slope formula to solve for slope: y2-y1/x2-x1

slope=1

Answer 2

Answer: 2nd

Step-by-step explanation: The simplification of given equation can be carried out by using slope intercept form and also by using the arithmetic operations.

1).

Given :

 --- (1)

To determine the slope of the given line, slope intercept form can be use and the slope intercept form is given by:

 --- (2)

Now, compare both the equation (1) and (2), we get the slope of the line  that is,   .

2).

Given :

3y + 4x = 15

Further simplify the given equation.

  ----- (3)

To determine the y-intercept of the given line, slope intercept form can be use and the slope intercept form is given by:

 --- (4)

Now, compare both the equation (3) and (4), we get the y-intercept of the line  that is, .

3).

Given :

  ---- (5)

 ---- (6)

Now, substitute the value of 'y' given in equation (5) in equation (6).

Now, put the value of y in equation (5).

Therefore, the correct option is A).

4).

Given :

3x + 4y = 31  ---- (7)

2x - 4y = -6  ---- (8)

Further simplify the equation (7).

 --- (9)

Now, put the value of x given in equation (9) in equation (8).

62 - 20y = -18

80 = 20y

y = 4

Put the value of y in equation (9) we get:

x = 5

Therefore, the correct option is B).