So we want this in the form y = mx + b, the equation of a line.
First, since we have 2 points, we can calculate the slope:
m = (y₂ - y₁)/(x₂ - x<span>₁</span>)
m = (30 - 21)/(0-1)
m = -9
The slope is negative since the line is sloping downward.
To get the b value which is the y-intercept, we simply look at the graph and see where the line crosses the y axis. It crosses exactly at 30.
So the equation will be:
y = -9x + 30
You need -9 and 30.<span />
Answer:
Step-by-step explanation:
3.3
5+x=-9
Use the subtractive property of equality to isolate x.
5+x=-9
-5 -5
x=-14
The value that satisfies x is -14. You can check your work by substituting x as -14 and checking if the equation is satisfied.
5+x=-9
x=-14
5+(-14)=-9
5-14=-9
-9=-9
the answer is correct. Succinctly, x=-14.
Answer:
Step-by-step explanation: