Answer:
(- 5, 3 )
Step-by-step explanation:
Given the 2 equations
y = - 8x - 37 → (1)
x + 3y = 4 → (2)
Substitute y = - 8x - 37 into (2)
x + 3(- 8x - 37) = 4 ← distribute and simplify left side
x - 24x - 111 = 4
- 23x - 111 = 4 ( add 111 to both sides )
- 23x = 115 ( divide both sides by - 23 )
x = - 5
Substitute x = - 5 into (1) for corresponding value of y
y = - 8(- 5) - 37 = 40 - 37 = 3
Solution is (- 5, 3 )
Answer: 2
<u>Step-by-step explanation:</u>
Answer: Choice C
The equation is y = 4x-3
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How I got that answer:
The first row has x = 0 and y = -3
So the answer is narrowed to either A or C. These answer choices have a y intercept of -3. Choices B and D have a y intercept of 3.
We need the slope now. Pick any two points from the table. I'm going to pick (0,-3) and (2,5) from the first two rows.
Slope formula:
m = (y2-y1)/(x2-x1)
m = (5-(-3))/(2-0)
m = (5+3)/(2-0)
m = 8/2
m = 4
The slope is 4, so the equation is y = 4x-3
That's why the answer is choice C
(we can rule out choice A as that slope is 1)
4000 pounds, 6000 pound, and 8000 pound is that what you need you question is typed funny