The figure below shows $\Delta ABC$ in the Cartesian plane. On the same grid, mark and label the c

Question

The figure below shows $\Delta ABC$ in the Cartesian plane. On the same grid, mark and label the coordinates of $A$, $B$ and $C$. Find the gradients of the straight lines $AB$, $BC$ and $AC$. In the same grid, draw the graph of $x = \frac{2}{5}$, for values of $y$ from $-1$ to $2$.

Accepted Answer

(i) $A=\left(\dfrac25,2\right)$, $B=\left(-\dfrac{13}{5},-1\right)$, $C=\left(\dfrac75,-1\right)$ (ii) $m_{AB}=1$, $m_{BC}=0$, $m_{AC}=-3$ (iii) $x=\dfrac25$ for $-1\le y\le2$

Gradient of Straight Line

Gradient of Straight Line

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