Do both as equation it will make it easier for her
Answer:
f(-4) = 72, f(x + 5) = 3x² + 23x + 36
Step-by-step explanation:
f(-4) = 3(-4)² - 7(-4) - 4
= 48 - (-28) - 4
f(-4) = 72
f(x + 5) = 3(x + 5)² - 7(x + 5) - 4
= 3(x + 5)(x + 5) - 7(x + 5) - 4
= 3(x² + 10x + 25) - 7(x + 5) - 4
= 3x² + 30x + 75 - 7x - 35 - 4
f(x + 5) = 3x² + 23x + 36
Answer:
I just did this yesterday, im in 7th grade but it’s still the same question. The answer is 8/4, but I would suggest writing 2 because the teacher might count it incorrect if you put 8/4.
Step-by-step explanation:
Point slope form: y-y1 = m(x-x1)
Find slope: (y2-y1)/(x2-x1)
(1-5)/(9+3) = -4/12 = -1/3
Point slope equation: y+5 = -1/3(x+3)
Slope intercept: y = -1/3x - 1 + 5
Final slope int equation: y = -1/3x + 4
Hey!
The first step to solving this equation would be to subtract 5 from both sides of the equation.
<em>Original Equation :</em>

- 8x + 16 = 5
<em>New Equation {Added Subtract 5 to Both Sides} :</em>

- 8x + 16 - 5 = 5 - 5
Now we solve our new equation.
<em>Old Equation :</em>

- 8x + 16 - 5 = 5 - 5
<em>Solution {Old Equation Solved} :</em>

- 8x + 11 = 0
The next step would be to solve with the quadratic formula.
<em>Quadratic Equation ( 1 ) :</em>

<em>Quadratic Equation ( 1 ) {Solved} :</em>
4 +

<em>Quadratic Equation ( 2 ) :</em>

<em>Quadratic Equation ( 2 ) {Solved} :</em>
4 -

<em>So, our final solutions for the equation

- 8x + 16 = 5 are...</em>
x = 4 + 
<em>and </em>
x = 4 - 
Hope this helps!
- Lindsey Frazier ♥