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2008 - Kapiti College

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QUESTION FOUR<br />

Given the graph: y = −3 x + 8<br />

(a) (i) What is the y-intercept? ____ [1]<br />

(ii) What is the gradient? ____ [1]<br />

(iii) the gradient.<br />

______________________________ [1]<br />

(b) Write the equation for the graph.<br />

______________________________<br />

(b) Draw the graph of. y = −3 x + 8 [2]<br />

______________________________ [2]<br />

y<br />

10<br />

(c) Sketch the graph: y = 4 on the axis below<br />

5<br />

y<br />

10<br />

-10 -5 5 10<br />

x<br />

5<br />

-5<br />

-10 -5 5 10<br />

x<br />

-10<br />

-5<br />

QUESTION FIVE<br />

Debbie is walking home from work. The graph<br />

shows her distance from home on her trip home.<br />

d (m)<br />

400<br />

300<br />

200<br />

100<br />

-10<br />

______________________________ [1]<br />

2<br />

(d) Sketch the graph: y = x − 3 on the axis<br />

3<br />

below<br />

y<br />

10<br />

1 2 3 4 5<br />

t (min)<br />

5<br />

(a) Write statements that interpret the<br />

following on the graph:<br />

(i) the d-intercept<br />

______________________________ [1]<br />

-10 -5 5 10<br />

-5<br />

-10<br />

x<br />

(ii) the t-intercept<br />

______________________________ [1]<br />

______________________________ [2]<br />

Page 7 Year 10 <strong>Kapiti</strong> <strong>College</strong> <strong>2008</strong>

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