Please answer these and find the slope intercept form for each one. Best answer gets brainliest

Mathematics

1 answer:

aksik [14]3 years ago

7 0

11) y=1/4x+2.5

12) y=-2x+8

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The equation of the quadratic function represented by the graph is y=a(x-3)^2-1. What is the value of a?

Y_Kistochka [10]

Answer:

Value of a is 2

Step-by-step explanation:

Given the equation of the quadratic function represented by the graph is $y=a(x-3)^2-1$ . we have to find the value of a.

As seen in the figure, parabola cuts the graph at point (2,1) implies point (2,1) is one of the solution of the given quadratic equation i.e of given parabola.

∴ Point (2,1) satisfies the given equation.

Hence, we can find the value of a by putting the value of x and y, we get

$1=a(2-3)^2-1$

⇒ $2=a$

Hence, the value of a is 2

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3 years ago

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4 years ago

Find the the slope of the line passing through points 2,2 and -1,0

scZoUnD [109]

For a given function, slope is defined as the change in outputs, or y-values divided by the change in inputs, or x-values. In essence the slope asks "For a given change in x, how much does y change?" or even more simply: "How steep is the graph of this function?". This can be represented mathematically by the formula: $slope=m=\frac{rise}{run}=\frac{\Delta y}{\Delta x}-\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substituting our known vlaues we have:
$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$
$m=\frac{2-0}{2-(-1)}$
$m=\frac{2}{3}$

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3 years ago

Plz I need help picture included

PSYCHO15rus [73]

Answer:

The simplified expression is 9 with the 4 on the side.

Step-by-step explanation:

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4 years ago

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Vedmedyk [2.9K]