4-2 Writing linear equations with two points

Which equation below is the point slope form?

• y = mx + b

• y = m(x + b)

• $y\ -\ y_{1\ }=m\left(x\ -x_1\right)$

• $\text{}\frac{y_{2\ }-y_1}{x_2-x_1}$

Write the linear equation that is solved by both (−6, 2) and (0, 4):

• y = (1/3)x + 4

• y = (-1/3)x + 4

• y = -3x + 4

• y = 3x + 4

What is the equation of the line that goes through the points (2, 9) and (3, 1) ?

• y= 8x - 5

• y= -8x + 25

• y= (1/8)x - 2

• y= (-1/8)x + 1

Which equation has a line that would pass through both (8, 5) and (9, −1) ?

• y = 6x + 53

• y = −6x - 53

• y = (−4/5)x + 53

• y = −6x + 53

Which of the linear equations below is solved by both (−9, 11) and (−2, 4) ?

• y = (−2/9)x + 11

• y = x - 2

• y = −x + 2

• y = −11x + 2/9

Which of the equations below would have a line that passes through both (1, 7) and (0, −9)?

• y = 1/2x − 9

• y = 16x − 9

• y = -1/2x − 9

• y = =16x − 9

Write the equation of the line that passes through the points (-2, -1) and (0, 5).

• y = 3x - 5
• y = 1/3x + 5
• y = 3x + 5
• y = 1/3x

Write the equation that is solved by both (-3, -1) and (3, 1).

• y = -3x - 5

• y = (-1/3)x + 5

• y = 3x + 1

• y = (1/3)x + 0

Write equation of the line containing (6,3) and (4,1)

• y = -1x + 5
• y = 1x - 3
• y = 1x + 5
• y = -1x + 3

Write equation of the line containing (-3,4) and (-1,-2)

• y = -3x - 5
• y = -3x + 1
• y = -3x + 13
• y = 3x + 1