1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leviafan [203]
3 years ago
14

If the point (a,1) lies on the line y = 3x - 5, what is the value of a?

Mathematics
1 answer:
stellarik [79]3 years ago
4 0

Answer:

a = 2

Step-by-step explanation:

Note that a point uses (x , y).

y = 1

x = a

Plug in 1 for y in the equation, and a for x:

y = 3x - 5

1 = 3a - 5

Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First add 5 to both sides:

1 (+5) = 3a - 5 (+5)

1 + 5 = 3a

6 = 3a

Next, divide 3 from both sides:

(6)/3 = (3a)/3

a = 6/3

a = 2

2 is your value for a.

~

You might be interested in
100 points and brainlyest !!! ONLY ANSWER IF U KNOW THE ANSWER !!!
Reil [10]

Answer:

Step-by-step explanation:

A” (-2,2)

B” (-1,-2)

C” (-4,-4)

5 0
2 years ago
Read 2 more answers
What is the solution to this equation x-16=-8
arsen [322]
X-16=-8
Add 16 on both sides 
x=-8+16
And solve; your answer will be
x=8
3 0
3 years ago
i made a clay snake 9 5/8 inches long, but a section 1 7/8 inches long broke off. how longis the snake now?
Fofino [41]
The answer is 7 3/4.
Turn into improper fraction
= 77/8 − 15/8

= ((77 × 8) − (15 × 8)) / (8 × 8)

= (616 - 120) / 64

= 496/64

= 31/4
8 0
3 years ago
Read 2 more answers
What is the solution for the system of equations? Use the substitution method to solve. y=5−3x 5x−4y=−3
exis [7]
The answer is x=1 and y =2
6 0
3 years ago
Read 2 more answers
What’s the equation in vertex form?
pshichka [43]

Answer:

\large\boxed{y=(x+5)^2-64}

Step-by-step explanation:

\text{The vertex form of equation}\ y=ax^2+bx+c:\\\\y=a(x-h)^2+k\\\\h=\dfrac{-b}{2a},\ k=f(h)\\\\\text{We have the equation:}\ y=x^2+10x-39\to x=1,\ b=10,\ c=-39.\\\\\text{Substitute:}\\\\h=\dfrac{-10}{2(1)}=\dfrac{-10}{2}=-5\\\\k=f(-5)=(-5)^2+10(-5)-39=25-50-39=-64\\\\\text{Finally:}\\\\y=1(x-(-5))^2-64=(x+5)^2-64

8 0
3 years ago
Other questions:
  • Is y=2x+5 a example of a proportional realationship
    8·2 answers
  • What is the slope of the line in the graph?
    14·2 answers
  • Kate bought 30 shares of Stock XYZ at the close price of $9.67. She bought
    11·1 answer
  • What is the inverse of the function f(x)=2x-10
    7·2 answers
  • One more than three times a number is less than the number decreased by five. solve and graph
    12·1 answer
  • Y=x^2-2x-5;y=x^3-2x^2-5x-9
    5·1 answer
  • Evaluate if m = 16 and p = 2. 1/2m + 3p A) 10 B) 14 C) 18 D) 48
    9·1 answer
  • What number divided by 2 will give you 30
    15·1 answer
  • ​a) Define your random​ variables, and use them to express the​ farmer's net income. A. Apounds of apples​ sold, ​, B. Aprice pe
    10·1 answer
  • I really need help??
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!