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Stolb23 [73]
3 years ago
13

What are the intercepts of y=8x-18

Mathematics
2 answers:
swat323 years ago
7 0

Answer:

x-intercept=\frac{9}{4}

y-intercept=-18

Step-by-step explanation:

The y-intercept is where x is equal to 0, and the x-intercept is where y is equal to 0, so:

x-intercept=(x,0)\\y-intercept=(0,y)

The equation is written in slope-intercept form:

y=mx+b

m is the slope and b is the y-intercept, so the y-intercept is -18.

Now set the value of y to 0 to find the intercept of x:

0=8x-18

Solve for x. Add 18 to both sides:

0+18=8x-18+18\\18=8x

Divide both sides by 8:

\frac{18}{8}=\frac{8x}{8}  \\\\\frac{18}{8} =\frac{9}{4}\\ \\x=\frac{9}{4}

The x -intercept is \frac{9}{4}.

x-intercept=(\frac{9}{4},0)\\\\y-intercept=(0,-18)

:Done

rjkz [21]3 years ago
3 0

Step-by-step explanation:

<u>Step 1:  Find the y-intercept</u>

To find the y-intercept, you need to set the x-value to 0 and solve for y.

y = 8(0) - 18

y = 0 - 18

y = -18

(0, -18) ← y-int

<u>Step 2:  Find the x-intercept</u>

To find the x-intercept, you need to set the y-value to 0 and solve for x.

0 + 18 = 8x - 18 + 18

18 / 8 = 8x / 8

2.25 = x

(2.25, 0) ← x-int

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How do i solve this equation
dedylja [7]
The first step to solving this is to multiply both sides of the equation by 3
8 + 10y = 9y - 12
now move the variable to the left side and change its sign
8 + 10y - 9y = -12
move the constant to the right side and change its sign
10y - 9y = -12 - 8
collect the like terms for y
y = -12 - 8                  (it equals 1 when you subtract 10 from 9 which is the same is simply saying "y")
calculate the difference on the other side of the equals sign
y = -20
this means that the correct answer to your question is -20.
let me know if you have any further questions
:)
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3 years ago
Answer the question below about line 1 and line 2 shown below
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Step-by-step explanation:

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3 * 5 means 5 + 5 + 5 which equals 15.

5 * 3 means 3 + 3 + 3 + 3 + 3 which equals 15.

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3 years ago
A hypothesis will be used to test that a population mean equals 10 against the alternative that the population mean is less than
Nonamiya [84]

Answer:

Lets take the hypothesis

<em>zα/2 </em>

<em>- zα/2 </em>

Step-by-step explanation:

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<em>z(0.05) = 3.92 </em>

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3 years ago
What are the possible steps involved in solving the equation shown? Select three options. 3.5 + 1.2(6.3 – 7x) = 9.38 Add 3.5 and
motikmotik

Answer:

1) Distribute 1.2 to 6.3 and -7x

2)Combine 3.5 and 7.56

3)Subtract 11.06 from both sides

Step-by-step explanation:

3.5 + 1.2(6.3 - 7x) = 9.38

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Subtract 11.06 from both sides

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To find solution:

Divide both sides by (-8.4)

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8 0
4 years ago
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