Answer:
s=750+30W, after 14 weeks she has 1170$
Step-by-step explanation:
It will be $15 dollars for 5 drinks
Answer:
do you need all work shown for this problem
In order to find the slope of the line, we can pick two points on the line and plug them into the slope equation (y2-y1)/(x2-x1)
two points could be (-3,-3) and (0,-1)
slope = (-1 - -3)/(-3-0) = 2/3
an equation for the line can be written using the slope and the y intercept (y value when x=0)
y = (2/3)x - 1
to find the a and b values look at the graph along the x and y axis. you can also count 2 points up and 3 points left from (0,-1) until you reach that point since it has the same slope. a=3, b=1
the y coordinate when x=0 is -1 because that is the y intercept
Answer: y ≤ x² + 8x + 7
<u>Step-by-step explanation:</u>
x ≤ -7 --> x + 7 ≤ 0
x ≥ -1 --> x + 1 ≥ 0
- First, let's figure out the quadratic equation:
y = (x + 7)(x + 1)
y = x² + 8x + 7
- Next, let's figure out which inequality symbol to use:
The quadratic is positive so it is U-shaped
x ≤ -7 and x ≥ -1
means the outside of the U-shaped parabola is shaded
so we need to use the ≤ symbol
<em>Note: if the inequality symbols were reversed, the shading would be inside the U-shaped parabola so we would use the ≥ symbol.</em>
