Which is an equation in point-slope form for the given point and slope?

point: (1, –7); slope:

y – 7 = (x – 1)

y + 7 = (x + 1)

y – 7 = (x + 1)

y + 7 = (x – 1)
1 points save answer

question 3

which is an equation in point-slope form for the given point and slope?

point: (5, 9); slope: 2

y – 9 = 2(x – 5)

y – 5 = 2(x + 9)

y + 9 = 2(x – 5)

y – 9 = 2(x + 5)

1 points save answer

question 4

which equation is graphed here?

graph of a line containing the following points: (–2, 4), (0, 1), and (2, –2).

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )