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3 years ago

Finding the Equation of a Line from a Graph and a Table plz help me

Mathematics

1 answer:

Leni [432]3 years ago

5 0

Answer:

slope (m)= 1/2

y-intercept: (0, -1)

equation: y= $\frac{1}{2}$ x-1

Step-by-step explanation:

slope is $\frac{rise}{run\\}$ = $\frac{1}{2}$

y-intercept is where the line crosses the vertical axis (y-axis) so its (0, -1)

using point slope form:

y-y1=m(x-x1)

y-(-1)=1/2(x-0)

y+1=1/2x

y= $\frac{1}{2}$ x-1

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When multiplying 2.94 by 3.045, the answer should have how many significant digits after the decimal point?

Ratling [72]

Answer:

4 beacause when we multiply it will be 8.9523

6 0

2 years ago

Kim walked diagonally across a rectangluar field that measured 100 ft by 240ft how far did she walk?

elena-s [515]

Draw a triangle and you can see that you can use the Pythagorean Theorem.
C = root (100^2 + 240^2)
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2 years ago

Use slope to determine if the following lines are parallel, perpendicular, or neither.

Gwar [14]

Answer:

The lines are parallel, with the same slope of 5.

Step-by-step explanation:

Remember that if slopes are the same, then the lines are parallel. If the slopes are opposite reciprocals, they are perpendicular. If they are neither of those cases, then they would be neither.

1) Since y = 5x + 1 is already in slope-intercept format (y = mx + b, in which m represents the slope) we know that 5 is the slope of that equation.

2) To find the slope of -5x + y = 6, let's just convert it to the slope-intercept format by isolating y on the left side like so:

$-5x + y = 6 \\y = 5x + 6$

(All you need to do is move -5x to the right side of the equation.) So, by looking at y = 5x + 6, we can do the same thing we did from step 1 and find that the slope is 5.

3) Since both of the equations' slopes are 5, they share the same slope - therefore, they are parallel.

Hope this helps! Please do not hesitate to ask any questions.

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3 years ago

Find C and a so that f(x) = CaX models the situation described. State what the variable x represents in your formula. In 2000 a

Nezavi [6.7K]

Answer:

f(x) = Ca^x

x = years since 2000.

f(0) = 220000 = Ca^0 = C

f(x) = 220000a^x

f(1) = 220000(1-0.11) = 220000a^1

a = 0.89

f(x) = 220000(0.89)^x

So each year reduces by 89%

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2 years ago

Write 5,400,300 in standard form - help!

Ainat [17]

Hello,

This number is already in stranded form.

If you want it in scientific notation its : 5.4003*10^6

Hope this helps a bit.

7 0

3 years ago

Read 2 more answers