SOLUTION: Sketch the graph of each equation by finding three ordered pairs that satisfy the each equation. a.) y = -2x + 4 b.) y = 5x – 6 c.) -3x –y

Algebra ->  Graphs -> SOLUTION: Sketch the graph of each equation by finding three ordered pairs that satisfy the each equation. a.) y = -2x + 4 b.) y = 5x – 6 c.) -3x –y      Log On


   

Question 48508: Sketch the graph of each equation by finding three ordered pairs that satisfy the each equation.

a.) y = -2x + 4

b.) y = 5x – 6

c.) -3x –y = 2

Found 2 solutions by cowess, tutorcecilia:
Answer by cowess(34) About Me  (Show Source):
You can put this solution on YOUR website!
a.) y = -2x + 4
x 0 1 2
y 4 2 0
graph%28200%2C200%2C-4%2C4%2C-4%2C4%2C-2x+%2B+4%29+
b.) y = 5x – 6
x +o +1 +2
y -6 -1 +4
graph%28300%2C300%2C-6%2C6%2C-6%2C6%2C5x-6%29+
c.) -3x –y = 2 => y=-3x-2
x +0 -1 +1
y -2 1 -5
graph%28300%2C300%2C-6%2C6%2C-6%2C6%2C-3x-2+%29

Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
a.) y = -2x + 4 [Plug in random values for x]
y = -2(1) + 4 [Let (x = 1)
y = -2 + 4 [solve for y]
y = 2, so the points are (1, 2)
.
y = -2x + 4 [Plug in another random value for x]
y = -2(-1) + 4 [Let (x = -1)
y = 2 + 4 [solve for y]
y = 6, so the points are (-1, 6)
.
y = -2x + 4 [Plug in another random value for x]
y = -2(0) + 4 [Let (x = 0)
y = 0 + 4 [solve for y]
y = 4, so the points are (0, 4)
.
y = -2x + 4
+graph%28+400%2C+400%2C+-10%2C+10%2C+-10%2C+10%2C-2x+%2B+4+%29+
.
b.) y = 5x – 6 [same process as above]
.
c.) -3x –y = 2 [First, solve for y]
-3x +3x –y = 2+3x
–y = 2+3x
–y/-1 = (2/-1) + 3x/-1
y = -2 + (-3x) [Switch the order]
y = -3x - 2 [Repeat the process as above]