Which equation describes the line through the points (4,-3) and (5,0)

y = 3x - 15

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m =

with (x₁, y₁ ) = (4, - 3) and (x₂, y₂ ) = (5, 0)

m = = 3 , thus

y = 3x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (5, 0 ), then

0 = 15 + c ⇒ c = 0 - 15 = - 15

y = 3x - 15 ← equation of line

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft