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3 years ago

Identify the slope and y-intercept of the linear equation: y = -2x - 4

Mathematics

2 answers:

Serggg [28]3 years ago

4 0

Answer:

y-intercept: -4

Slope: -2

Step-by-step explanation:

y-intercept:

y= -2x - 4

Substitute x for 0

y= -2*0 - 4

Solve

-4

Slope:

y= -2x - 4

m=slope

-2 or -2/1

Maurinko [17]3 years ago

3 0

Answer:

Slope: -2

Y-intercept: -4

Step-by-step explanation:

Hope this helps. Pls give brainliest.

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Solve for x<br><br> 3(ax + 9) = -4 (-2 - 10x)

ivolga24 [154]

Answer:

----- = x

40-3a

Step-by-step explanation:

3(ax + 9) = -4 (-2 - 10x)

Distribute

3ax +27 = 8+40x

Subtract 3ax from each side

3ax-3ax +27 = 8+40x-3ax

27 = = 8+40x-3ax

Subtract 8 from each side

27-8 = 8-8+40x-3ax

19 = 40x-3ax

Factor an x on the right side

19 = x(40-3a)

Divide each side by 40-3a

19/(40-3a) = x(40-3a)/(40-3a)

----- = x

40-3a

8 0

2 years ago

Banabas must pay his ex-wife an amount of R350 000 in two years’ time. Calculate the amount that he must invest today to have th

White raven [17]

Answer:

He must invest R297 521 today.

Step-by-step explanation:

The compound interest formula is given by:

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

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Banabas must pay his ex-wife an amount of R350 000 in two years’ time.

This means that $t = 2, A(t) = 350000$