Y-18=14
y=14+18
y=32
3(y+5)=?
All you have to do is figure out what y is and then substitute the value of y into the second expression.
3(32+5)=3(37)=111
The value of "x" is 14400 dollars that will make their weekly pay the same
<em><u>Solution:</u></em>
Given that,
<em><u>Brandon is paid $235 per week plus 6% of his total sales in dollars, x, which can be represented by g (x) =235 + 0.06x</u></em>
g(x) = 235 + 0.06x ----- eqn 1
<em><u>Nolan is paid $667 per week plus 3% of his total sales in dollars, x, which can be represented by f(x ) = 667 + 0.03x</u></em>
f(x) = 667 + 0.03x ----------- eqn 2
<em><u>Determine the value of x, in dollars, that will make their weekly pay the same</u></em>
For their weekly pay to be same, g(x) = f(x)
235 + 0.06x = 667 + 0.03x
Move the variables to one side and constants to other side
0.06x - 0.03x = 667 - 235
0.03x = 432
x = 14400
Thus value of "x" is 14400 dollars that will make their weekly pay the same
Plug in the data sets
1 = 1/2(1) + 1, false
5 = 1/2(2) + 1, false
0 = 1/2(1) + 1, false
3 = 1/2(4) + 1, true
The answer is D
Subtract three from either side. That will give you 4r=-21. Divide -21 by 4 and r will equal -5.25.
First, for end behavior, the highest power of x is x^3 and it is positive. So towards infinity, the graph will be positive, and towards negative infinity the graph will be negative (because this is a cubic graph)
To find the zeros, you set the equation equal to 0 and solve for x
x^3+2x^2-8x=0
x(x^2+2x-8)=0
x(x+4)(x-2)=0
x=0 x=-4 x=2
So the zeros are at 0, -4, and 2. Therefore, you can plot the points (0,0), (-4,0) and (2,0)
And we can plug values into the original that are between each of the zeros to see which intervals are positive or negative.
Plugging in a -5 gets us -35
-1 gets us 9
1 gets us -5
3 gets us 21
So now you know end behavior, zeroes, and signs of intervals
Hope this helps<span />
