Y = -2x +8
y = x-1
y=y
-2x+8 = x-1
-3x = -1 -8
-3x = -9
3x = 9
x = 3
900-573=327 To reach their goal the least amount of books they need to read is 327
Answer:
k = 2
Step-by-step explanation:
Given the equations:
g(x) = 3x² + 8x + k
f(x) = 2x - 1
At the intersection point:
g(x) = f(x)
3x² + 8x + k = 2x - 1
3x² + 6x + (k+1) = 0
If there is only one intersection point, the discriminant must be equal to zero:
b² - 4(a)(c) = 0
6² - 4(3)(k+1) = 0
36 - 12(k+1) = 0
36 - 12k - 12 = 0
24 = 12k
24/12 = k
2 = k
Answer: it’s Sara paid 3
Step-by-step explanation:
