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3 years ago

15

I need help with this

1 answer:

iogann1982 [59]3 years ago

7 0

Answer:
A) y=1/3x+5
B) y=-2x+9
C) y=-3
D) y=2x+9
E) y=-10x+80
F) y=x-2

Explanation:
Use y=mx+b
m=slope
b=starting point (or where it crosses the y-axis

For slope, use rise over run.
To determine negative slope, read from left to right and see if it’s going up or down. If down it’s negative, if up then positive.

Also BE CAREFUL, on D, the y-axis is labeled differently. Take an extra look at it.

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Can anyone help me find the value pls?

Oliga [24]

Answer:

80°

Step-by-step explanation:

x = 80°{being alternate angle}

5 0

3 years ago

What is the solution to the equation P over 9= 72?

Fed [463]

P / 9 = 72

Multiply both sidess by 9

P / 9 (9) = 72 (9)

p = 648

4 0

3 years ago

Write f(x)=8x^2-4x+11 in vertex form

Vlad [161]

Answer:

$f(x)=8(x-\frac{1}{4})^{2}+\frac{21}{2}$

or

$f(x)=8(x-0.25)^{2}+10.5$

Step-by-step explanation:

we have

$f(x)=8x^{2}-4x+11$

This is a vertical parabola open upward (because the leading coefficient is positive)

The vertex is a minimum

Convert to vertex form

Factor the leading coefficient

$f(x)=8(x^{2}-\frac{1}{2}x)+11$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$f(x)=8(x^{2}-\frac{1}{2}x+\frac{1}{16})+11-\frac{1}{2}$

$f(x)=8(x^{2}-\frac{1}{2}x+\frac{1}{16})+\frac{21}{2}$

Rewrite as perfect squares

$f(x)=8(x-\frac{1}{4})^{2}+\frac{21}{2}$ ----> equation in vertex form

or

$f(x)=8(x-0.25)^{2}+10.5$

The vertex is the point (0.25,10.5)

3 0

3 years ago

Please help, I have been struggling w this one for a while:(

viva [34]

Answer:

option 2

Step-by-step explanation:

I hope that's the answer cause I'm pretty sure it is

3 0

3 years ago

How are the ratios 3:6 and 9:18 related?

Viktor [21]

Answer:

three times 3 is nine and six times three is eighteen, 3:6 is simplified.

8 0

3 years ago

Read 2 more answers