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The demoin is all real numbers greater than 6
I use box method to solve this...:
100x^2+34x+49
I hope you wanted the formula! :)
A) Substitution
substitute y = 5x-2 for y in the first equation and solve for x:
5x-2 = 7x-8 subtract 7x from both sides
-2x-2 = -8 now add 2 to both sides
-2x = -8 + 2 simplify
-2x = -6 divide both sides by -2
x=3
Now substitute x with 3 in either equation
y=5x-2 =5*3-2 =13
(3,13)
B) (3,13) is the point where the two lines intersect
y=mx+b is the equation of a line
Answer: 5 over 28 ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Step-by-step explanation:
F(3)=-4(3)^2+4(3)-4
= -4(9)+12-4
= -36+12-4
F(3)= -28