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
gulaghasi [49]
3 years ago
14

A line passes through the points (−3,1) and (1,−2). This line can be modeled by the equation y=ax+b. What are the values (in fra

ction and decimal form) of a and b?
Mathematics
1 answer:
victus00 [196]3 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

y = ax + b is the equation in slope- intercept form

where a is the slope of the line and b is the y- intercept

To find a use the slope formula

a = (y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 3, 1) and (x₂, y₂ ) = (1, - 2)

a = \frac{-2-1}{1+3} = - \frac{3}{4} = - 0.75, hence

y = - 0.75 + b

To find b substitute either of the 2 points into the equation

using (1, - 2), then

- 2 = - 0.75 + b ⇒ b = - 2 + 0.75 = - 1.25 = - 1 \frac{1}{4}



You might be interested in
Please answer these, i’ll give brainliest.
Alekssandra [29.7K]

Answer:

9) 21

10) 70

11) 64

12) 31

13) 83

14) 31

Step-by-step explanation:

too easy!!

7 0
2 years ago
Solve graphically,<br>x - y = 7 and x + y = 3<br>​
Rzqust [24]

Answer:

x-y=7  

slope:1

y-int:(0,7)

x+y=3

slope: -1

y-int:(0,3)

hope this helps!!:)

Step-by-step explanation:

4 0
2 years ago
Need help with math plzzzz​
alukav5142 [94]

Step-by-step explanation:

2x-5÷3x+4

multiple and dive the angles

4 0
3 years ago
Solve each exponential equation algebraically using logarithms.
grin007 [14]

1). 12 is the answer for number 1

6 0
2 years ago
What is the slope of the line that passes through the given points?<br><br> (-1, -5) and (-12, -5)
Anon25 [30]

First, find the slope (m) using the formula: \frac{y2 - y1}{x2 - x1}

m = \frac{-5 - (-5)}{-1 - (-12)} = \frac{0}{11} = 0

Next, input the slope and ONE of the points into the point-slope formula:

y - y₁ = m(x - x₁)   ; where (x₁, y₁) is the chosen point

y - (-5) = 0(x - (-1))

y + 5 = 0

y = -5

Answer: y = -5

8 0
3 years ago
Other questions:
  • WILL REWARD BRAINLIEST!:)
    11·1 answer
  • Solve the following equations: (a) x^11=13 mod 35 (b) x^5=3 mod 64
    9·1 answer
  • What is the exact circumference of a circle with a diameter 15 inches
    11·1 answer
  • Find the perimeter of a triangle with vertices A(3, 1), B(2, -1), and C(-3, 2). Leave
    13·1 answer
  • Write the equation of a line with slope 2 and y-intercept −1.<br> PLEASEEE I NEED HELPPPPP
    12·2 answers
  • Matt has two very active dogs named Theia and Odin who need to eat extra snacks to increase
    13·1 answer
  • The foot of the ladder is 10 feet from the wall. The ladder is 2 feet longer than the height that it reaches on the wall. What i
    6·2 answers
  • A police car is approaching a right-angled intersection from the north at 35 mph, and a speeding car is heading east at 30 mph.
    13·2 answers
  • I have one qt of solution diluted out 1:4 How much do I need to add to end up with a final product that’s a 1:10 solution?
    8·1 answer
  • I need help with math if you don't know the answer get out of the question and don't answer it and give the wrong answer or some
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!