5 night’s because you should divide 3 chapters by 3 over 5
F(x) = x²-4x-5, quadratic function,
Domain (the values if x) is all real numbers.
To find range we should draw a graph or to write an equation in vertex form.
f(x) = x²-4x+4-4-5
f(x) = (x-2)²-9
Point (-2,-9) is the vertex of the parabola, and it is a minimum because a parabola has positive sign in front of x², so it is looking up. Minimum value of y =-9
Range(the values of y) is [-9, ∞)
Answer:
y = x - 3
Step-by-step explanation:
4y + 3 = 3y + x
y + 3 = x
y = x - 3
She made the mistake in step 4
She should have divided by -2 not just 2 alone
