Will give brainliest to first person Solve with determinants x+4y=5 , 5x-7y=-2
2 answers:
You might be interested in
Answer:
y=4x
Step-by-step explanation:
First, find the slope
We know 2 points, (2,8) and (12,48).
(2,8) can be (x1, y1)
(12,48) can be (x2, y2)
We can say that y2 is 48, y1 is 8, x2 is 12, and x1 is 2. Substitute them in
m=4
Now, we can use the point slope formula, since we have a point and the slope
We know m, the slope is 4. We also know a point (2,8), which is (x1, y1). Substitute them in
y-8=4(x-2)
Distribute the 4
y-8=4*x-2*4
y-8=4x-8
Add 8 to both sides
y=4x