1. Questions

Math

Find a linear equation whose graph is the straight line with the given property.
Through (2, −7) and (1, 1)

I got -8x-23, I know it doesn't match, maybe its the wrong formula

Find a linear equation whose graph is the straight line with the given property.
Through
(1/4, −1)and parallel to the line
4x − 5y = 5

How do I make it parallel?

Thank you.

  1. 👍
  2. 👎
  3. 👁
Jane

  1. slope = (1+7)/(1-2) = -8

    I don't know what method or "formula" you have been taught, but using the slope-yintercept form seems to be a popular method these days.

    y = mx + b
    y = -8x + b
    sub in the point (1,1) , (I always use the "easier" point)
    1 = -8 + b
    b = 9

    equation : y = -8x + 9
    or
    8x + y = 9

    The second one is even easier.
    Since the new line is parallel to the given line, it must look like
    4x - 5y = c , differing only in the constant term
    sub in the given point (1/4 , -1)
    4(1/4) - 5(-1) = c
    c = 1 + 5 = 6

    new equation: 4x - 5y = 6

    1. 👍
    2. 👎
    Reiny

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    Use the graph below to answer the following question. 1. Find the slope. (1 point) 2 – –2 Use the graph below to answer the following question. 2. Find the slope of the line. Describe how one variable changes in relation to

  2. math help!!!

    stuck!! pls help/explain!!! 2. Do the values in the table represent a linear function? If so, what is the function rule? (1 point) x = -2, 0, 2, 4 y = -4, 0, 4, 8 The values do not show a linear function. Yes, they show a linear

  3. math

    1. which graph represents the equation y = x^2 - 2? 2. which graph represents the equation y = 6x^2? 3. which graph represents the equation y = |x|+2? graph I is a wide V-shape going through quadrants I and II. graph II is a slim

  4. graphing

    Q: How could the function y=3t^2 +4 be plotted on a cartesian graph to produce a straight line? What would be the numerical values of the slope and the intercept of the line? For this it's explained in the lab book for physics as

  1. Math

    1. Graph the points A ( -5,0) B ( -4, 3) and C ( 0, -4) A B C D 2. Identify the quadrant in which (3, -6) lies A II B IV C I D III 3. Determine which ordered pair is a solution of y = 2x - 3 A ( -2, 7) B ( 0, 3) C ( -4, -11 D ( 5,

  2. Algebra

    Find a linear equation whose graph is the straight line with the given property. HINT [See Example 2.] Through (2, −3) and (1, 1) Which formula do I use? y2-y1/x2-x1 or y-y1=m(x-x1)[

  3. Math

    Lesson 8: Systems of Linear and Quadratic Equations Check my work 1. Solve the system of equations. y = 2x^2 - 3 y = 3x - 1 a. no solution b. (-1/2, 5), (2, -5/2) c. (-1/2, -5/2), (2,5)*** d. (1/2, 5/2), (2, 5) 2.how many real

  4. Science

    Table 1: Temperature and volume data Trial Temperature (Celsius) Volume (mL) Starting Volume Room Temperature = Hot Water Trial 1 107 5.6ml Hot Water Trial 2 108.3 5.4ml Cold Water Trial 1 lo 4.4ml Cold Water Trial 2 lo 4.4ml PLOT

  1. Math(check)

    1)Find the range of the relation [(-1,4)},(2,5),(3,5)}.Then determine whether the relation is a funtion. 4,5,5 is the range 4,5 is a function 2)Find f(-1),if f(x)= x^2-6x/x+2 (-1)^2-6(-1)/-1+2 1+6/-1+2 7/1 =7 3)Find f(a),if f(t)=

  2. Math

    Which of the following options best describes the function graphed below? A graph shows a slanting straight line that starts at the origin and goes up. Nonlinear increasing Nonlinear decreasing Linear increasing Linear decreasing

  3. Algebra

    Need help with these: 12. Name the property: 8 + 3.4= 3.4 + 8 a. Inverse Property of Addition b. Associative Property of Addition c. Commutative Property of Addition d. Inverse Property of Multiplication I think the answer is C

  4. maths

    the straight line l1 has equation y=2x+3 the straight line l2 is parallel to l1 l2 passes through the point (3,2) find an equation for l2

You can view more similar questions or ask a new question.