Question

Find the slope of the equations:

3) 2x-y=10

4) 5x-2y =10


Write a linear equation in slope intercept form of a line:

slope = -3 and goes thru (-1, -2)

Answer 1

3. 2x - y = 10
2x - 2x - y = -2x + 10
-y = -2x + 10
-1 -1
y = 2x - 10
Slope: 2

4. 5x - 2y = 10
5x - 5x - 2y = -5x + 10
-2y = -5x + 10
-2 -2
y = 2.5x - 5

5. y - y₁ = m(x - x₁)
y - (-2) = -3(x - (-1))
y + 2 = 3(x + 1)
y + 2 = 3(x) + 3(1)
y + 2 = 3x + 3
- 2 - 2
y = 3x + 1