Find a equation of the line that has intercepts (1,0) and (0,4).

Mathematics

2 answers:

yan [13]2 years ago

6 0

Answer:

B) y=-4x+4

Step-by-step explanation:

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

m=(4-0)/(0-1)

m=4/-1

m=-4

y-y1=m(x-x1)

y-0=-4(x-1)

y=-4(x-1)

y=-4x+4

Bingel [31]2 years ago

5 0

Answer:

Step-by-step explanation:

rise over run gives you 4/1 which equals 4. and the only 2 intercepts given lead negatively so the line has to be negative which gives you -4 then where x=0 is the x intercept which is positive 4

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How much did you invest if you earned $131.60 in interest at a rate of 4% for seven years?

Ket [755]

The amount invested is $ 470

<h3><u>Solution:</u></h3>

Given that , we have earned $131.60 as simple interest for an amount deposit at the rate of 4% for seven years.

We have to find the amount invested. That is, we need to find the principal sum

Let us use the simple interest formula

<em><u>The simple interest is given as:</u></em>

$\text { Simple interest }=\frac{p r i n c i p a l \times \text {rate of interest } \times \text {number of years}}{100}$

Here, simple interest = $ 131.60

Rate of interest = 4 %

Number of years = 7

principal = ?

Substituting the values in formula, we get

$\begin{array}{l}{131.6=\frac{\text { principal } \times 4 \times 7}{100}} \\\\ {131.6 \times 100=\text { principal } \times 4 \times 7} \\\\ {13160=\text {principal } \times 28} \\\\ {\text {Principal }=470}\end{array}$