Because "y" is + in <span>2x+y=7, let's subtract 2x from both sides and end up with an expression for y: y = 7 - 2x. Substituting this into 5x - 3y = 23,
5x - 3(7 - 2x) = 23. Multiply out -3(7 - 2x):
5x - 21 + 6x = 23. Combining 5x and 6x, 11x - 21 = 23, or 11x = 44.
Thus, x = 4. Since y = 7 - 2x, subst. x = 4 results in the value of y:
y = 7 - 2(4) = 7 - 8 = -1.
The solution is (4,-1).</span>
The function given is a line with one zero at the center (0,0)
Answer:
2a2 + 4a + 7
Step-by-step explanation:
As, - (2a3 - 3a2 + 4a + 6) + (2a3 + 5a2 + 7)
= 2a2 + 4a + 13
The answer would be C. Hope this helped!
It would be the first graph
That is because the 2nd and 3rd graphs start at a point close to (0,-2) but it is not the correct point.
Now using (0,0) as a solution plug it in for the x and y values like so
0 <−3(0)−2 = 0 < -2
0 ≤ 0 −2 = 0 ≤ -2
This does not work so solutions from (0,0) up cannot be solutions, so the first graph must be the right answer.
