liferocks1226 liferocks1226
  • 25-09-2018
  • Mathematics
contestada

slove the system of equations y=2x-3 y=x^2-3

Respuesta :

jimrgrant1 jimrgrant1
  • 25-09-2018

(0, - 3) or (2, 1)

Since both equations express y in terms of x we can equate them

x² - 3 = 2x - 3

subtract 2x from both sides

x² - 2x - 3 = - 3

add 3 to both sides

x² - 2x = 0

take out a common factor of x

x(x - 2) = 0

equate each factor to zero and solve for x

x = 0 or x - 2 = 0 ⇒ x = 2

substitute values of x into y = 2x - 3 for corresponding values of y

x = 0 → y = 0 - 3 = -3 ⇒ (0, -3)

x = 2 → y = 4 - 3 = 1 ⇒ (2, 1)


Answer Link

Otras preguntas

are the mid segments of an isosceles triangle congruent
Which is most likely an acquired trait in horses? A. color of fur B. length of ears C. ability to run D. a slight limp
What would happen if the valves separating the chambers in a person's heart did not close?
there is my question
How can you write 240.149 in word form?
What would happen if the valves separating the chambers in a person's heart did not close?
What is likely to happen in the long term if the Earth continues to absorb more energy than it emits?
Which factor is not used to define biomes? a. plant structures b. leaf type c. historical similarities d. climate
What is likely to happen in the long term if the Earth continues to absorb more energy than it emits?
A rectangle is three times as long as it is wide. If the total area of the rectangle is 48 square inches, what is the length of the rectangle?