1. 4x - y = 6 2. 3x + 2y = 8 3. y - 1/2x = 3/4

1 answer:

6 0

1➡Problem ▶4x - y = 6
Steps▶4(x)-y- 6=?
y-intercept▶6÷-1 = -6, right ?
x-intercept ▶ 6÷4 which is also equal. to▶ 3÷2 , they both equal 1.5 , right?
The answer⬇

Your slope▶4
y-intercept ▶ -6
x-intercept ▶1.5

2➡Problem 3x + 2y = 8
Steps▶3(x)+2(y)-8=?
y-intercept▶ 8 ÷ 2 = 4, right?
x-intercept 8 ÷ 3 = 2.67 ,right?
Slope▶-3.0÷2.0 = -1.50

Your answer⬇
y-intercept ▶4
x-intercept ▶2.67
Slope ▶1.50

3 ➡Problem y - 1/2x = 3/4
Steps ▶ 3÷4 = .75
1÷2 = .5
y-intercept ▶ 3÷4 = .75,right?
x-intercept ▶3 ÷ (-2) = -1.50; 1.5 , right ?
Slope ▶ 1 ÷ 2 = .5, right ?

your answer⬇
y-intercept : .75
x-intercept: 1.5
Slope .5

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$800 is deposited in an account that pays 9% annual interest compounded annually. Find the balance after four years

tester [92]

Answer:

Step-by-step explanation:

Compounded interest formula is

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

Where $A$ is the final amount, $P$ is the principal, $r$ is the anual interest in decimal, $n$ is the numer of compounded periods in one year and $t$ is the time in years.

$P=\$800\\r=0.09\\n=1\\t=4$

Notice that $n=1$ , because the interest is compounded anually, if the interest is compounded, then $n=12$ , because there would be 12 compound periods in one year.