<span>"Five times a number added to -4"
5x + (-4)
</span>
<span>subtracted from...
"twice the sum of eight times the number and 7"
2(8x + 7)
5x - 4 - 2(8x + 7)
distribute the -2
5x - 4 - 16x - 14
combine like terms
</span><span>
-11x - 18
</span>
Answer:
y=2/3x+4
Step-by-step explanation:
Answer:
Cheap; Bad
Step-by-step explanation:
According to the experience in the real world.
Since the deepest point of Death Valley is below sea level, its altitude is negative. So, the difference between the altitudes is

Subtracting a negative means to add, so we have

we have

This is a vertical parabola open upward
The axis of symmetry is equal to the x-coordinate of the vertex
The vertex is the point (h,k)
the equation of the axis of symmetry is 
In this problem

so the x-coordinate of the vertex is 
<u>Convert the quadratic equation in vertex form</u>
Group terms that contain the same variable, and move the constant to the opposite side of the equation

Factor the leading coefficient

Complete the square. Remember to balance the equation by adding the same constants to each side

Rewrite as perfect squares


remember that

so



substitute in the equation


therefore
<u>the answer is</u>
