Rojas Guzman
12/24/2023 · Primary School

3.3.1 Tcken grafieke(met byskrifte)deur die volgende vergelykings voor te stel, toon die \( x \) en \( y \)-afsnitte. Teken die grafieke op dicselfde assestelsel voorsien op die diagramblad. \( y=-2 x+4 \) \( 2 y=x-8 \)

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Om die grafieke van die vergelykings \( y = -2x + 4 \) en \( 2y = x - 8 \) te teken, volg ons die volgende stappe: ### 1. Vind die \( x \) en \( y \)-afsnitte #### A. Voor die eerste vergelyking: \( y = -2x + 4 \) - **\( y \)-afsnit**: Stel \( x = 0 \): \[ y = -2(0) + 4 = 4 \] Dus, die \( y \)-afsnit is \( (0, 4) \). - **\( x \)-afsnit**: Stel \( y = 0 \): \[ 0 = -2x + 4 \implies 2x = 4 \implies x = 2 \] Dus, die \( x \)-afsnit is \( (2, 0) \). #### B. Voor die tweede vergelyking: \( 2y = x - 8 \) - **\( y \)-afsnit**: Stel \( x = 0 \): \[ 2y = 0 - 8 \implies 2y = -8 \implies y = -4 \] Dus, die \( y \)-afsnit is \( (0, -4) \). - **\( x \)-afsnit**: Stel \( y = 0 \): \[ 2(0) = x - 8 \implies x = 8 \] Dus, die \( x \)-afsnit is \( (8, 0) \). ### 2. Teken die grafieke Nou kan ons die punte op 'n assestelsel teken: - **Grafiek van \( y = -2x + 4 \)**: - Punte: \( (0, 4) \) en \( (2, 0) \) - **Grafiek van \( 2y = x - 8 \)**: - Punte: \( (0, -4) \) en \( (8, 0) \) ### 3. Assestelsel 1. Teken 'n horisontale lyn vir die \( x \)-as en 'n vertikale lyn vir die \( y \)-as. 2. Merk die punte op die assestelsel: - Vir die eerste grafiek: \( (0, 4) \) en \( (2, 0) \). - Vir die tweede grafiek: \( (0, -4) \) en \( (8, 0) \). 3. Verbind die punte om die lyne te vorm. ### 4. Byskrifte - Merk die eerste grafiek as \( y = -2x + 4 \). - Merk die tweede grafiek as \( 2y = x - 8 \). ### 5. Grafiek Die finale grafiek sal twee lyne hê wat die \( x \) en \( y \)-afsnitte toon, en die byskrifte sal die vergelykings aandui. As jy nie die grafiek kan teken nie, kan jy dit op 'n grafiekprogram of met 'n grafiekrekenaar doen.

Quick Answer

1. Find the \( x \) and \( y \) intercepts for the equations: - For \( y = -2x + 4 \): \( y \)-intercept is \( (0, 4) \), \( x \)-intercept is \( (2, 0) \). - For \( 2y = x - 8 \): \( y \)-intercept is \( (0, -4) \), \( x \)-intercept is \( (8, 0) \). 2. Plot these points on the coordinate system and connect them to form the lines. 3. Label the lines with the equations: \( y = -2x + 4 \) and \( 2y = x - 8 \).
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