Determine whether each system has one solution, no solution, or infinitely many solutions. 1.) -x -y=2. y=x-2. 2.) x+y=1. x+y=-3. 3.) x+y=5. y=-x+5.

according to this law, when unemployment goes up by 1%, gdp drops by 2%. in the question, unemployment rate goes from 2% to 5%, meaning unemployment goes up by 3%, so the gdp drops by 6%. thus the effect is a drop in gdp by 6%.

step-by-step explanation:

(4x+15)^2

step-by-step explanation:

factor using the perfect square rule

x > 4

step-by-step explanation:

solve for   x by simplifying both sides of the equation, then isolating the variable.

(a) x intercepts: -6 and 2

you can obtain these by solving the equation 0=x^2 +4x-12 using your favorite quadratic formula. but it is easy to verify -6 and 2 indeed satisfy this equation.

(b) y intercept: -12

this is obtained by setting x=0: 0^2+4*0-12 = -12

(c) the minimum value is: -16 (this is the vertex)

you can get the vertex by rewriting the equation into the form:

there is no global or local maximum as the function goes to infinity, so only in the limit sense: +infinity.