Part 3 and four have the same place
It would be -4. subtracting a positive is the same as adding a negative
Answer:
y = -
x + 
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 ) = (2, - 3) and (x₂, y₂ ) = (- 1, 4)
m =
=
= -
, thus
y = -
x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (- 1, 4), then
4 =
+ c ⇒ c = 4 -
= 
y = -
x +
← equation of line
Answer:
7. Height = 21 in
8. Height = 13 cm or 130 mm
Step-by-step explanation:
7.
½ × 5 × height = 52.5
height = 21 in
8.
23 mm ÷ 10 = 2.3 cm
½ × 2.3 × height = 14.95
height = 13
Answer: (1,3) or x = 1 and y = 3
Step-by-step explanation:
The solution is the intersection thus the answer is (1,3) or x = 1 and y = 3