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r-ruslan [8.4K]
2 years ago
9

Solve the following quadratic function by utilizing the souare root method y=x2-1 x= = +[?] ]​

Mathematics
1 answer:
klio [65]2 years ago
7 0

Answer:

  x = ±1

Step-by-step explanation:

We have to assume you want the solution for y = 0:

  0 = x² -1

  1 = x² . . . . . . add 1

  ±1 = x . . . . . . take the square root

  x = ±1

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Can someone help me whose good at geometry?
Pavel [41]
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It would be
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6 0
4 years ago
Explain how to evaluate f(g(0)).
alekssr [168]

Answer as a fraction:  17/6

Answer in decimal form: 2.8333  (approximate)

==================================================

Work Shown:

Let's use the two black points to determine the equation of the red f(x) line.

Use the slope formula to get...

m = slope

m = (y2-y1)/(x2-x1)

m = (4-0.5)/(2-(-1))

m = (4-0.5)/(2+1)

m = 3.5/3

m = 35/30

m = (5*7)/(5*6)

m = 7/6

Now use the point slope form

y - y1 = m(x - x1)

y - 0.5 = (7/6)(x - (-1))

y - 0.5 = (7/6)(x + 1)

y - 0.5 = (7/6)x + 7/6

y = (7/6)x + 7/6 + 0.5

y = (7/6)x + 7/6 + 1/2

y = (7/6)x + 7/6 + 3/6

y = (7/6)x + 10/6

y = (7/6)x + 5/3

So,

f(x) = (7/6)x + 5/3

We'll use this later.

---------------------

We ultimately want to compute f(g(0))

Let's find g(0) first.

g(0) = 1 since the point (0,1) is on the g(x) graph

We then go from f(g(0)) to f(1). We replace g(0) with 1 since they are the same value.

We now use the f(x) function we computed earlier

f(x) = (7/6)x + 5/3

f(1) = (7/6)(1) + 5/3

f(1) = 7/6 + 5/3

f(1) = 7/6 + 10/6

f(1) = 17/6

f(1) = 2.8333 (approximate)

This ultimately means,

f(g(0)) = 17/6 as a fraction

f(g(0)) = 2.8333 as a decimal approximation

8 0
3 years ago
Aliyah has $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?
Keith_Richards [23]

Your answer is $2

She spent $2 on each pencil 2 x 7 = 14 take away 14 from 24 you get 10

8 0
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Answer:

use 0-9 to fill in blanks

Step-by-step explanation:

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3 years ago
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algol13
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