X=-b/2a is the formula for finding the axis of symmetry
So x= -30/2(5)
X=-30/10
X=-3
Because the axis of symmetry is -3, we know where to place our line, and we also know that the parabola is open downwards, which means that the vertex will be maximum. To find the vertex, plug in your values with the axis of symmetry as a midway point. Plug that in for x and so you should have the following:
F(x)
Y(f(x) and y variables are interchangeable) =5(-3)^2-30(-3)+49
Solve for y(f(x))
5(-3)^2-30(-3)+49
(-3)^2=3^2
3^2*5+30*3+49
Multiply
3^2*5+90+49
Add numbers
3^2*5+139
9*5=45
45+139=184
Y=184
So, your vertex would be
(-3,184) and it would be maximum. From there you can plug in the rest of your table of values.
Answer: it would be false.
Step-by-step explanation:
Let n = number
" product of 3 and a squared number" translates to 3n²
"sum of the number and 4" translates to n + 4
The word "is" becomes your equals sign.
3n² = n + 4 is your equation.
<h3><em>
Hey! </em></h3>
<u>let the numbers be n and m</u>
<u>n+m=65</u>
<u>n=4m</u>
<em>So when we put our work in:</em>
<u>4m+m=65</u>
<u>5m=65</u>
<u>m=13</u>
<u>n=52</u>
So therefore your two numbers are 52 and 13!
<em>Hope this helped! °ω°</em>
