Is it (6-x) all over x, or 6- (x/3) ?
Slope-intercept form: y = mx + b
(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)
To find the slope(m), use the slope formula:
And plug in the two points on the line
(-5, 4) = (x₁, y₁)
(-4, 7) = (x₂, y₂)
(two negative signs cancel each other out and become positive)
m = 3 Now that you know the slope, substitute/plug it into the equation:
y = mx + b
y = 3x + b To find b, plug in either of the points into the equation, it doesn't matter which, then isolate/get the variable "b" by itself. I will use (-5, 4)
4 = 3(-5) + b
4 = -15 + b Add 15 on both sides to get "b" by itself
4 + 15 = -15 + 15 + b
19 = b
y = 3x + 19
Answer:
One solution, x=1
Step-by-step explanation:
isolate the variable
(x+3)2=-9
Got it right on my test
Answer:
2x + y = -2, x + 2y = 2
4x + y - 2z = 0, 2x+ 3z = 9 , -6x - 2y + z = 0
x + y = 4 , x - y = 2
Step-by-step explanation: