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4 years ago

What is y+1=2x-3 is in slope/intercept form?

Mathematics

2 answers:

Sedaia [141]4 years ago

7 0

Answer:

y=2x-4

Step-by-step explanation:

just subtract the 1 inorder to isolate for y

Grace [21]4 years ago

5 0

Answer:

y=2x-4

Step-by-step explanation:

My guess would be to make it in y=mx+b form so just move that one to the other side so it will turn into a negative number add it to the -3 because of like terms can't do it to the 2x and it leaves you with y=2x-4

hope that's how you do it

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Consider the first five steps of the derivation of the Quadratic Formula.

lara31 [8.8K]

Answer:

Full proof below

Step-by-step explanation:

$\displaystyle ax^2+bx+c=0\\\\ax^2+bx=-c\\\\x^2+\biggr(\frac{b}{a}\biggr)x=-\frac{c}{a}\\\\x^2+\biggr(\frac{b}{a}\biggr)x+\biggr(\frac{b}{2a}\biggr)^2=-\frac{c}{a}+\biggr(\frac{b}{2a}\biggr)^2\\\\x^2+\biggr(\frac{b}{a}\biggr)x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}\\ \\\biggr(x+\frac{b}{2a}\biggr)^2=-\frac{4ac}{4a^2}+\frac{b^2}{4a^2}\\ \\\biggr(x+\frac{b}{2a}\biggr)^2=\frac{b^2-4ac}{4a^2}\\ \\x+\frac{b}{2a}=\pm\frac{\sqrt{b^2-4ac}}{2a}\\ \\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

6 0

2 years ago

The ratio of black socks to white socks in the sock drawer is 1:4. There are 8 black socks. How many white socks are there?

inn [45]

Answer:

Step-by-step explanation:

7 0

3 years ago

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Alexxandr [17]

Answer:

The first book ur

3 0

3 years ago

True or False <br> Reject the null hypothesis if the p-value is more than the significance level, a.

stira [4]

Answer:

true

Step-by-step explanation:

Reject the null hypothesis if the p-value is more than the significance level, a.

7 0

3 years ago

Which point of concurrency is NOT always inside a triangle? Check all that apply. A. circumcenter B. incenter C. orthocenter D.

timama [110]

Answer:

Option A. is correct

Step-by-step explanation:

The circumcenter is a point of intersection of all the perpendicular bisectors of a triangle.

The incenter is a point of intersection of all the angle bisectors of a triangle.

The orthocenter is a point of intersection of all the altitudes of a triangle.

The centroid is a point of intersection of all the medians of a triangle.

The incenter, orthocenter, and centroid always lie inside a triangle.

However, a circumcenter does not always lie inside a triangle.

In an acute-angled triangle, the circumcenter may lie inside or outside the triangle.

So,

Option A. is correct

8 0

3 years ago