Step-by-step explanation:
4x² - 12x + 9 = 5 → 4x² - 12x + 4 = 0 → x² - 3x + 1 = 0
∆ = b² - 4ac → ∆ = (-3)² -4(1)(1) = 9 - 4 = 5
x = (-(-3) ± √5)/2(1) = (3 ± √5)/2
x² - 3x + 1 = 0 → (x - 3/2)² - 9/4 + 1 = 0 → (x - 3/2)² = 5/4 → x - 3/2 = ±√5 / 2 → x = ½( 3 ± √5)
X 5,10,15,20,25 , Y 25,50,75,100,125 Based on the information in the table, what is the constant of proportionality?
Trava [24]
Answer:
5
Step-by-step explanation:
because its counting up by 5
A parent function is the simplest function of a family of functions that preserves the definition (or shape) of the entire family.
If x=0 then we have -3y=-7
y=7/3 (0, 7/3) is your first pair
if y=0 then we have 5x=-7
x=-7/5 (-7/5, 0) second pair
now create a graph with these 2 points and any point in the line can be your 3rd pair.
