Answer:
A, C and D
Step-by-step explanation:
The missing inequality is:
y > 2x -4
To verify if a point is a solution, replace <em>x </em>into the equation, compute <em>y, </em>and see their relationship.
<u>Option A</u>: (-2,-5)
2(-2) -4 = -8
y = -5 > -8
then, the point is solution
<u>Option B:</u> (0,-4)
2(0) -4 = -4
y = -4 = -4
then, the point is not solution
<u>Option C</u>: (1,1)
2(1) -4 = -2
y = 1 > -2
then, the point is solution
<u>Option D</u>: (3,5)
2(3) -4 = 2
y = 5 > 2
then, the point is solution
<u>Option E</u>: (5,5)
2(5) -4 = 6
y = 5 < 6
then, the point is not solution
Answer:
7/2 is the slope and 5 is the y-intercept
Step-by-step explanation:
Slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.
7x-2y=-10
subtract 7x on both sides
-2y=-7x-10
divide by -2 on both sides
y=(7/2)x+5
7/2 is the slope and 5 is the y-intercept.
-2y^2 + 6y + 2 = 0
a = -2, b = 6, c = 2
x = (- b + - sqrt(b^2-4ac))/(2a)
x=(-6+-sqrt(36-4*-2*2))/-4
x=(-6+-sqrt(36+16))/-4
x=(-6+-sqrt(52))/-4
x = (-6 +- 2sqrt13)/-4
x = (3 + - sqrt13)/2
The answer is approximately A ~ 688.19