The equation of a line is y = mx + b. Calculate the slope (m) from the 2 points.
m = (-2-2)/(-4-4) = -4/-8 = 1/2
We could stop here as only one answer has a slope of 1/2, namely A). But if you wanted to show that the y-intercept (b) was 0, you could use either of the points and substitute it into the equation of the line and solve for b.
(-4,-2):
-2 = 1/2(-4) + b
-2 = -2 + b
0 = b
(4,2):
2 = 1/2(4) + b
2 = 2 + b
0 = b
270 degrees this because when you count each angle it is 90 degrees then 180 degrees then 270
Answer:
(- 6, 14 )
Step-by-step explanation:
Given the 2 equations
x + y = 8 → (1)
2x + y = 2 → (2)
Multiplying (1) by - 1 and adding to (2) will eliminate the y- term
- x - y = - 8 → (3)
Add (2) and (3) term by term to eliminate y, that is
x = - 6
Substitute x = - 6 into either of the 2 equations and evaluate for y
Substituting into (1)
- 6 + y = 8 ( add 6 to both sides )
y = 14
solution is (- 6, 14 )
42/48 in simplest form is 7/8
Answer:
26
Step-by-step explanation: