These are all true or false : 1. complex numbers have a real part and an imaginary part.
2. if a quadratic equation has complex roots, you cannot use factoring to find the solutions
3. when using the quadratic equation, you always have to simplify the radical as much as possible
4. if the discriminant is -22, the formula can't be simplified further

1. true 2.true 3.true 4. false. you can further simplify it using "i" standing for the square root of -1

Step-by-step explanation:

160

step-by-step explanation:

idk

i hope i

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b