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german
3 years ago
10

What equation is graphed in this figure? y+2=−32(x−2) y−3=32(x+1) y+1=−23(x−3) y−4=−23(x+2) Number graph that ranges from negati

ve five to five on the x and y axes. A line passes through begin ordered point zero comma one end ordered pair and begin ordered pair two comma negative two end ordered pair
Mathematics
1 answer:
dsp733 years ago
6 0

Answer:

y+2=-\frac{3}{2}(x-2)

Step-by-step explanation:

Given:

Two points on a line are given as:

(0, 1)  and (2, -2)

We know that the slope of a line passing through points (x_1,y_1)\ and\ (x_2,y_2) is given as:

m=\frac{y_2-y_1}{x_2-x_1}

Plug in x_1=0,y_1=1,x_2=2,y_2=-2. This gives,

m=\frac{-2-1}{2-0}\\\\m=\frac{-3}{2}=-\frac{3}{2}

The equation of a line with slope 'm' and points (x_1,y_1)\ and\ (x_2,y_2) is given as:

y-y_1=m(x-x_1)\\\\or\\\\y-y_2=m(x-x_2)

Now, on plugging in the second point (x_2,y_2)=(2,-2) we get:

y-(-2)=-\frac{3}{2}(x-2)\\\\y+2=-\frac{3}{2}(x-2)

Therefore, the first option is correct which is given as:

y+2=-\frac{3}{2}(x-2)

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Given problems;

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To factor this equation, we must understand that this is a quadratic equation.

A quadratic equation usually has two roots.

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2. Factor 2n² - 5n -3;

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The factor of the equation is (2n + 1)(n-3).

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