Answer:
Part 1) AJ drawn the parabola opening upwards, instead of drawing it opening downwards
Part 2) see the explanation
Step-by-step explanation:
Part 1) What mistake did AJ make in the graph?
we have

This is the equation of a vertical parabola written in vertex form
The parabola open downward (because the leading coefficient is negative)
The vertex represent a maximum
The vertex is the point (-2,-1)
therefore
AJ drawn the parabola opening upwards, instead of drawing it opening downwards
Part 2) Evaluate any two x-values (between -5 and 5) into AJ's function. Show your work. How does your work prove that AJ made a mistake in the graph?
take the values x=-4 and x=4
For x=-4
substitute the value of x in the quadratic equation

For x=4
substitute the value of x in the quadratic equation

According to AJ's graph for the value of x=-4 the function should be positive, however it is negative and for the value of x=4 the function should be positive and the function is negative
therefore
AJ made a mistake in the graph
 
        
             
        
        
        
Answer:
15 (mark me brainliest if you want and lmk if you need more help understanding)
Step-by-step explanation:
perimeter is (l*w)*2
if a pentagon is 5 sided, you do 75/5 which is 15. 
each side has 15 cm
 
        
             
        
        
        
Answer:
(4, -1) (3, 5) In this problem, we use the formula y2 - y1 over x2 - x1.
Step-by-step explanation:
Step 1: Plug In--> <u>5 - (-1)</u>
                             3 - 4
Step 2: Simplify. --> <u>6</u>
                                 -1
Answer: <u><em>-6</em></u>
 
        
             
        
        
        
Answer:
<h2>y = 3/4x + 5</h2>
Step-by-step explanation:
The slope-intercept form:

m - slope
b - y-intercept → (0, b)
The formula of a slope:

We have the points (4, 8) and (0, 5) → b = 5.
Calculate the slope:

Therefore we have the equation of the line:

 
        
                    
             
        
        
        
Answer:
The answer is B
Step-by-step explanation: