<u>Answer:</u>
A) There are two complex solutions.
<u>Step-by-step explanation:</u>
To know how many solutions a quadratic equation has, calculate the discriminant of the equation.
discriminant = b² - 4ac
where a = coefficient of x²
b = coefficient of x
c = constant of equation
if b² - 4ac > 0 , then equation has 2 real roots
if b² - 4ac = 0 , then equation has 1 real, repeated root
if b² - 4ac < 0 , then equation has 2 complex roots
In this case, discriminant = 9² - 4(-2)(-12)
= -15
As -15 < 0, equation has 2 complex roots.
Answer:
B
Step-by-step explanation:
when solving for slope use the equation M=y2-y1/x2-x1
this is how you would set it up:
1.) set out your Ys and Xs:
Y2= 2 Y1= 0 X2= 3 X1= -3
2.) set up your equation:
M= Y2-Y1/ X2-X1
M= 2-(0)/3-(-3)
M= 2/6
M= 1/3
3.) your answer is:
M= 1/3
Answer: y=6x-2
Step-by-step explanation: Make the equation 4=6(1) as you have now inputed the numbers of 1,4 into the equation 1=x 4=y and then subtract 6 both sides and you have -2
Answer:
40% markup means the scale price is 1.40 times the cost. 1.40 ($20) = $28
Step-by-step explanation:
multiple the price by 1.40
hopefully this helped :)