Write the equation of this line in slope-intercept form
Answer:
y = - [tex]\frac{2}{5}[/tex] x + 4
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 = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (5, 2) ← 2 points on the line
m = [tex]\frac{2-4}{5-0}[/tex] = [tex]\frac{-2}{5}[/tex] = - [tex]\frac{2}{5}[/tex]
Note the line crosses the y- axis at (0, 4) ⇒ c = 4
y = - [tex]\frac{2}{5}[/tex] x + 4 ← equation of line
Answer:
y = -2/5 +4
Step-by-step explanation:
points are :
(0 , 4 ) and ( 5,2)
midpoint = (0 + 5 )/2 and ( 4 + 2 )/2
= (2.5 , 3 )
the gradient = (2 - 4 )/ ( 5 - 0)
= -2/5
now create the equation using both gradient and midpoint
Y - y1 = m (X - x1)
y-3 = -2/5 (x - 2.5)
y = -2/5 x +1 +3
y = -2/5 +4