Answer:
-1/2
Step-by-step explanation:
Hello,
y=(x-2)²-15
y=5x-1
==> 5x-1=x²-4x+4-15
==> x²-9x-10=0
Δ=9²+4*10=11²
x=(9+11)/2 or x=(9-11)/2
==>(x=10 and y=5*10-1=49) or (x=-1 and y=5*(-1)-1=-6)
1) A (-1,-6)
2) C (10,49)
Point C.
f(-3) is basically substituting x = -3 and get the y-value.
So when we substitute x = -3. Focus on x-axis at x = -3 then look up for the y-value. If the y-value is on x = -3 then that's f(-3)
Answer: 5x+3
Step-by-step explanation: 3 more refers to addition so you are aware that 3 is the number that is being added in the equation, and 5 times refers to multiplication so you know 5 is being multiplied in the equation, which means the algebraic expression would be: 5x+3.
