If i understand your question correctly, the answer is 172 years.
Answer:
The discrimant of this equation is 144.
Step-by-step explanation:
First you have to move all the variables to one side to make the equation/expression into 0 by substracting 8x² to both sides :
9x² + 14x + 13 = 8x²
9x² + 14x + 13 - 8x² = 8x² - 8x²
x² + 14x + 13 = 0
It is given that the formula of discriminant is, D = b² - 4ac where a&b&c represent the number of the equation, ax²+bx+c = 0 :
x² + 14x + 13 = 0
D = b² - 4ac
= 14² - 4(1)(13)
= 196 - 52
= 144
Answer:
y = 5/2 x+19
Step-by-step explanation:
The slope intercept form of a line is
y = mx+b where m is the slope and b is the y intercept
y = 5/2 x+b
Substituting the point into the equation
4 = 5/2(-6) +b
4 = -15+b
Add 15 to each side
19 =b
The equation is
y = 5/2 x+19
Answer:
(-3,13)
Step-by-step explanation:
Apply the rule given as in (-x,y)