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Ahat [919]
3 years ago
6

HELP Please!!!

Mathematics
2 answers:
daser333 [38]3 years ago
8 0

Answer:

1. false

2. false

3. true

Step-by-step explanation:

1. If the value of a was negative, then the graph of the quadratic would open downwards because the negative sign would induce a reflection of the graph over the x-axis.

However, we can see from the graph that the quadratic opens up, so a is not negative and this statement is false.

2. The vertex of a quadratic equation is the minimum or maximum point. Here, since the graph points up, the vertex will be the minimum point. That point is actually (3, -1). Clearly, this is not (-1, 3), so the statement is false.

3. The axis of symmetry is essentially the line with the x-value of the vertex. Since the x-coordinate of the vertex is 3, that means the axis of symmetry is the line x = 3. Thus, the statement is true.

scoray [572]3 years ago
4 0

Answer:

False

False

True

Step-by-step explanation:

Since it's a concave up, a > 0

Vertex: (3,-1)

Symmetry: x = 3

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Which is equivalent to x^3 y^-7
PilotLPTM [1.2K]

For this case we must find an expression equivalent to:

x ^ 3 * y ^ {- 7}

By definition of power properties we have to meet:

a ^ {-1} = \frac {1} {a ^ 1} = \frac {1} {a}

Then, we can rewrite the expression as:

x ^ 3 * \frac {1} {y ^ 7} =\\\frac {x ^ 3} {y ^ 7}

Answer:

\frac {x ^ 3} {y ^ 7}

8 0
3 years ago
Which equation is not a linear equation?
Julli [10]

Answer:

the answer is c  x^4

Step-by-step explanation:  

HI.....

liner equation mean that the  power of   the variables in equation  is 1

x^4 =  the power of variable x is 4  so  non linear  

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4 0
3 years ago
Use the relationship between the angles in the figure to answer
Sholpan [36]
31+40 = 71. 180-71=109
5 0
3 years ago
Read 2 more answers
Tony has $727.29 in his checking account. He must maintain a $500 balance to avoid a fee. He wrote a check for $248.50 today. Wr
Butoxors [25]
Inequality is
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6 0
4 years ago
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Determine the intercepts of the line that passes through the following points. (-15,5) (-9,10) (-3,15)
notsponge [240]
To find the x and y-intercept, we can write an equation in slope intercept form. 
first, we need to find the slope
the formula for slope is 
m= (y₂-y₁)/(x₂-x₁)

now just put any two points into the equation
m=(10-5)/(-9-(-15)
m=5/6

so now we can write the slope-intercept equation
y=5/6x + b

in a slope-intercept equation, b is equal to the y-intercept, so we can take one of our 3 pairs of points and put them into the equation to solve for b

15= 5/6(-3) +b
15=-2.5 + b
17.5 = b
so now we know the y-intercept is (0,17.5)

now we can write the equation as 
y= 5/6x + 17.5

since the x intercept is when y=0, we can set y to 0 and then solve for x

0= 5/6x +17.5
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-21 = x 

by setting y to zero, we figured out that the x-intercept is (-21,0)

hope this helped!

6 0
3 years ago
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