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3 years ago

How do i find the y-intercept for f(x)=|x|-5

Mathematics

2 answers:

wel3 years ago

8 0

The y-intercept for f(x)=|x|-5 is (-5). Just look at the function as slope-intercept form and find the number that is not being multiplied by x. That number will usually be your y-intercept.

Stella [2.4K]3 years ago

5 0

The y intercept is (0, -5) if you substitute 0(zero) in for x.

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If (72)p = 76, what is the value of p? 2 3 4 8

o-na [289]

Answer:

it would be +2

Step-by-step explanation:

the equation would be (72)+2= 76

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4 years ago

Write the equation of the line that passes through the point (3,5) and is perpendicular to the line y=3.

lorasvet [3.4K]

Answer:

x=3 and y=5 passes through(3,5)

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so anwer is x=3

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4 years ago

If 3 times a number, n, is increased by 10, the result is equal to 8 times the number. Which could be the first two steps to fin

NNADVOKAT [17]

First set up an equation in n:-

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4 years ago

Joe's annual income has been increasing in the same dollar amount. The first year his income was $15,200, and the 4th year his i

lidiya [134]

Answer:

Therefore 6th year his income was $19,700.

Step-by-step explanation:

Given, Joe's annual income has been increasing in some dollar amount . The first year his income was $15,200 and 4th year his income was $17,900.

A=$17900, P= $15,200 and n = 3 year

$A= P(1+\frac{r}{100} )^n$

$\Leftrightarrow 17900=15200(1+\frac{r}{100})^3$

$\Leftrightarrow (1+\frac{r}{100})^3=\frac{17900}{15200}$

$\Leftrightarrow (1+\frac{r}{100})=(\frac{17900}{15200})^{\frac{1}{3} }$

$\Leftrightarrow \frac{r}{100}=(\frac{17900}{15200})^{\frac{1}{3} }-1$

$\Leftrightarrow r=5.60$

Let $t^{th}$ year Joe's income was $19,700.

$\therefore 19700=15,200(1+\frac{5.60}{100} )^{t-1}$

$\Leftrightarrow 1.296= (1+0.056)^{t-1}$

$\Leftrightarrow 1.296= (1.056)^{t-1}$

$\Leftrightarrow log(1.296)= (t-1)log(1.056)$

$\Leftrightarrow \frac{log(1.296)}{log(1.056)}= (t-1)$

$\Leftrightarrow t-1= 4.75$

$\Leftrightarrow t= 4.75+1$

$\Leftrightarrow t = 5.75$ ≈6

Therefore 6th year his income was $19,700.

8 0

3 years ago

How do you solve for x in the equation bx - c = a

anyanavicka [17]

Do x divided by b on both sides and then add a on both sides. :)

3 0

3 years ago

Read 2 more answers