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ser-zykov [4K]
3 years ago
14

4x + 5y = 20

Mathematics
1 answer:
jek_recluse [69]3 years ago
6 0

Answer:

x-intercept: (5, 0)

y-intercept: (0,4)

Step-by-step explanation:

The x- and y-intercepts of a function are the points that the line crosses the x- and y-axes.

We know that when the line is crossing the x-axis, the y-value has to be 0.

So let's use this, and the equation, to help us find the x-intercept.

Plug in 0 for y; this will help us find the x.

4x + 5(0) = 20

4x + 0 = 20

4x = 20

x = 5

Now we know that the line crosses the x-axis at x = 5. The intercept is (5, 0) because we already knew that y = 0.

We also know that when the line is crossing the y-axis, the x-value has to be 0.

So let's use this, and the equation, to help us find the y-intercept.

Plug in 0 for x; this will help us find the y.

4(0) + 5y = 20

0 + 5y = 20

5y = 20

y = 4

Now we know that the line crosses the y-axis at x = 4. The intercept is (0, 4) because we already knew that x = 0.

You can substitute these (5, 0) and (0, 4) back into the equation to make sure they fit, or graph the equation and make sure the points are correct.

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Tanzania [10]

Answer:

4/9

Step-by-step explanation:

Given rate is 1/3 acre per 3/4 hours.

To calculate the rate per hour, we have to divide total acres by the fraction of hour

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5 0
2 years ago
PLS HELP I DONT REMEMBER HOW TO DO THIS
Gala2k [10]

Answer:

oh lord...ill try my best

Step-by-step explanation:

Let's start b writing down coordinates of all points:

A(0,0,0)

B(0,5,0)

C(3,5,0)

D(3,0,0)

E(3,0,4)

F(0,0,4)

G(0,5,4)

H(3,5,4)

a.) When we reflect over xz plane x and z coordinates stay same, y coordinate  changes to same numerical value but opposite sign. Moving front-back is moving over x-axis, moving left-right is moving over y-axis, moving up-down is moving over z-axis.

A(0,0,0)

Reflecting

A(0,0,0)

B(0,5,0)

Reflecting

B(0,-5,0)

C(3,5,0)

Reflecting

C(3,-5,0)

D(3,0,0)

Reflecting

D(3,0,0)

b.)

A(0,0,0)

Moving

A(-2,-3,1)

B(0,-5,0)

Moving

B(-2,-8,1)

C(3,-5,0)

Moving

C(1,-8,1)

D(3,0,0)

Moving

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6 0
3 years ago
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Answer:

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H) I need to see the data table again for step 2d.

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Basically subtract all of the GPAs from the Hours in the table.

Ex). Hours - GPA = Difference

or like before,

      9.2 - 2.23 = 6.97

Do the rest of the numbers like this then plot the answers.  I'd advise you plot your second set of scatter plot points in a different color.

6 0
3 years ago
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Answer:

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kherson [118]
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