3 years ago

Is the point (5,8) a solution to the system of equations shown below? Justify your response

1 answer:

5 0

Step-by-step explanation:

For the point (5,8) to be a solution to the equations, when you insert x=5 and y=8 , they have to equal to the given values

substituting (5,8) into 4x+y

4(5)+8

=20+8

=28

substituting(5,8) into x-y=3

5-8

= -3

You might be interested in

Given the sequence 4, 8, 16, 32, 64, ..., find the explicit formula.

Goshia [24]

Answer:

$\sf 2^{(n+1)}$

Step-by-step explanation:

Explicit formula is used to represent all the terms of the geometric sequence using a single formula.

$\sf \boxed{\bf t_n=ar^{(n-1)}}$

Here, a is the first term.

r is the common ratio.

r = second term ÷ first term

4, 8,16,32,64,.....

a = 4

r = 8 ÷4 = 2

$\sf t_n =4*2^{(n-1)}$

$\sf = 4*2^n * 2^{(-1)}\\\\ = 4*2^n*\dfrac{1}{2}\\\\ = 2*2^n$

$\sf = 2^{(n+1)}$

4 0

2 years ago

Sam, John, Matt, and Bob are going to drive to Florida. It is a 8 1/4 hour drive. Sam drove 1 1/3 hours. John drove 1 5/6 hours.

vovangra [49]

Answer:

Step-by-step explanation:?

7 0

3 years ago

Read 2 more answers

PLEASE I NEED THE ANSWERS

Olenka [21]

Answer:

1 is not a transformation

2 is a reflection

3 is a dilation

4 is a translation

Step-by-step explanation:

8 0

3 years ago

Please help me, im struggling plz

DerKrebs [107]

Quadratic function.

4 0

3 years ago

If f(x) = 3a|4x - 4| - ax, where a is some constant not equal to zero, find f '(1)

dlinn [17]

The slope of an absolute function at the point where it evaluates to zero is undefined.
Here, when x=1, so |4x-4|=|4-4|=|0|, the slope is undefined. This is where the vertex of the "V" on the graph of the absolute value function.

7 0

3 years ago

Read 2 more answers