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Sidana [21]
3 years ago
8

Graph x+4y=8 what is the x-intercept?

Mathematics
2 answers:
netineya [11]3 years ago
8 0

Answer:

x=8 or (8,0)

Step-by-step explanation:

The x-intercept of a function is the value of which y=0, or the coordinate points where the function crosses through the x-axis.

Observing the attached graph, you can see that the line crosses the x-axis at the point (8,0). This means that x=8 when y=0, which holds true algebraically since x+4y=8 -> 8+4(0)=8 -> 8+0=8 -> 8=8.

Therefore, the x-intercept of the function is x=8 or (8,0).

Tomtit [17]3 years ago
4 0

Answer:

(4,1)

Step-by-step explanation:

You might be interested in
Is 1/3 bigger or 0.33
cestrela7 [59]

Answer:

<em>1/3 > 0.33</em>

Step-by-step explanation:

1/3 = 0.333333... ( a non-terminating decimal with repeating 3.

0.33 is just 0.33

0.333333... > 0.33

1/3 > 0.33

7 0
3 years ago
Solve the inequality and write the solution set using both set-builder notation and interval notation. -3a-15≤-2a+6
sleet_krkn [62]

Answer:

Set builder notation: {a | a ≥ -21}

Interval notation: [-21, ∞)

Step-by-step explanation:

A set represents a collection of things, objects, or numbers. A set builder notation is in the form y = {x | x is an odd number between 8 and 10}, which means y contains all the odd numbers between 8 and 10.

Interval notation is a way to define a set of numbers between a lower limit and an upper limit using end-point values. for example (8, 20) means numbers between 8 and 20.

Given -3a-15≤-2a+6; solving :

-3a - 15 ≤ -2a + 6

-3a + 2a ≤ 6 + 15

-a ≤ 21

dividing through by -1:

a ≥ -21

The solution is:

Set builder notation: {a | a ≥ -21}

Interval notation: [-21, ∞)

7 0
3 years ago
Five adult tickets and three child tickets for a movie costs £55. The cost of buying two adult tickets and three child tickets i
Allisa [31]

Answer:

  • adult £8
  • child £5

Step-by-step explanation:

If you look at the numbers you are given, you see that the first purchase has 3 more adult tickets than the second purchase, and its cost is £24 more. This means an adult ticket costs £24/3 = £8.

Two adult tickets will cost 2×£8 = £16, so three child tickets cost ...

  £31 -16 = £15

Each child ticket is then £15/3 = £5.

An adult ticket costs £8; a child ticket costs £5.

7 0
3 years ago
You are choosing between two plans at a discount warehouse. Plan A offers an annual membership fee of $ 90and you pay 30 %of the
Ad libitum [116K]

Answer:

Step-by-step explanation:

We have 2 linear equations, and in both, the amount of merchandise you would have to purchase is "x", the unknown.  We are asked to find that value of x.

The first equation is

C(x) = .30x + 90, which says that the cost of this plan is a fixed $90, and you pay 30% of the manufacturer's cost, x.

The second equation is

C(x) = .80x + 40, which says that the cost of this plan is a fixed $40, and you pay 80% of the manufacturer's cost, x.

If we want to know when the cost of these 2 are equal to each other, we set the equations equal to each other and solve for x:

.3x + 90 = .8x + 40 so

-.5x  = -50 so

x = $100

The cost for each plan will be the same at this value of x, but we will plug in 100 for x in each just to make sure we did it right:

C(100) = .3(100) + 90

C(100) = 30 + 90

C(100) = 120  and

C(100) = .8(100) + 40

C(100) = 80 + 40

C(100) = 120

6 0
3 years ago
Y=3/4x +9 what is the x and y points of this
ValentinkaMS [17]

Answer:

The y point is 9 and the x point is -12

Step-by-step explanation:

7 0
3 years ago
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