Answer:
y = 2x - 1 is the required equation
Step-by-step explanation:
slope(m) = (3-7)/(2-4)
m = -4/(-2)
so, m = 2
Now,
y = mx + b
or, y = 2x + b
so, 3 = 2*2 + b
or, 3 = 4 + b
so, b = -1
equation would be y = 2x - 1
Answer:
Y= 2x - 1
Step-by-step explanation:
I will give you the solution for y = mx + b because it is a line.
First, find the slope.
The formula for the slope is (y2 - y1)/(x2 - x1)
I'm going to use A as y2 and x2, so it's easier because it'll give me positive numbers.
(7 - 3)/(4 - 2) = 4/2 = 2
2 is your m value.
Now you have y = 2x + b
Next, input an x and a y value to find b.
Let's take the x and y from our B value.
3 = 2(2) + b
3 = 4 + b
3 - 4 = b (Bring the value over to the other side, change the sign)
-1 = b
So, your answer is y = 2x - 1
